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The population movements during the last decades have resulted in a progressively increasing interest in certain infectious diseases. Eosinophilia is a common finding in immigrants and travellers. One of the most common causes of eosinophilia is helminth infection, and some intestinal protozoa. The aim of this paper is to describe the epidemiological characteristics of cases with eosinophilia and its association with the presence of parasites in the REDIVI data network. This is a multicentre prospective observational study that includes patients diagnosed with eosinophilia registered in the cooperative network for the study of infectious diseases in travellers and immigrants (+REDIVI) from January 2009 to December 2012. A total of 5,255 episodes were recorded in the network during the study period, and eosinophilia was observed in 8.1-31.3% of cases (depending on the immigration group). There were 60.2% men, with a median age of 31years. There were 72.4% immigrants, and 81.2% were asymptomatic. The most commonly identified parasites were S.stercoralis (34.4%), Schistosoma sp. (11.0%), and hookworm (8.6%). The relationship between eosinophilia and parasite infection was significant for all helminths (except for cutaneous larva migrans). The symptoms and duration of the journey did not significantly determine the presence of eosinophilia. In the case of eosinophilia in a person who has lived in helminth endemic areas, it is advisable to carry out targeted studies to diagnose the infection, regardless of immigration type, length of stay, or the presence of symptoms., (Copyright © 2016 Elsevier España, S.L.U. and Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica. All rights reserved.)

We herein describe a case of secondary syphilis in a patient with HIV infection that presented with an unusually diffuse polyostotic osteitis with skull involvement. Syphilis has to be added to the differential diagnosis of extensive inflammatory bone pain in patients at risk, especially if pain worsens at night.

Although the incidence of syphilis reached a historic low in 2000, the number of incident cases has since increased in men and women across the USA. In 2019, men who have sex with men (MSM) accounted for 57% of all primary and secondary (P&S) syphilis cases, and about half of MSM with P&S syphilis are living with human immunodeficiency virus (HIV) infection. Days after infection, Treponema pallidum disseminates and invades tissues distant from the site of inoculation. Once the spirochete disseminates, the host develops an inflammatory response; diagnosis requires a high level of suspicion since syphilis may affect the skin, musculoskeletal, cardiovascular, and central nervous systems. We report a 61-year-old man with virally suppressed HIV infection who presented with polyarthralgia, chest pain, and weight loss, diagnosed with secondary syphilis, manifesting with ankle inflammatory arthritis and bone involvement, of the calvarium and manubrium. Early and late syphilis in adults can manifest with articular and periarticular pathologies, including inflammatory arthritis, tenosynovitis, periostitis, and myositis. Higher clinical suspicion is needed for prompt diagnosis of syphilis in patients who are at risk and suspected of having an autoimmune disease. This report includes a review of the musculoskeletal manifestations of syphilis. [ABSTRACT FROM AUTHOR]

The article focuses on a case where a 48-year-old man with a history of treated plasmablastic lymphoma and controlled HIV approached with subacute left leg pain, followed by the right leg and left forearm pain. It mentions that a biopsy showed many spirochetes and DNA from Treponema pallidum, leading to the diagnosis of osseous syphilis of the left tibia. It states that osseous syphilis is a rare form of early syphilis that is more typically found in congenital syphilis.

(1) Background: This work aims to analyze clinical outcomes according to ethnic groups in patients hospitalized for COVID-19 in Spain. (2) Methods: This nationwide, retrospective, multicenter, observational study analyzed hospitalized patients with confirmed COVID-19 in 150 Spanish hospitals (SEMI-COVID-19 Registry) from 1 March 2020 to 31 December 2021. Clinical outcomes were assessed according to ethnicity (Latin Americans, Sub-Saharan Africans, Asians, North Africans, Europeans). The outcomes were in-hospital mortality (IHM), intensive care unit (ICU) admission, and the use of invasive mechanical ventilation (IMV). Associations between ethnic groups and clinical outcomes adjusted for patient characteristics and baseline Charlson Comorbidity Index values and wave were evaluated using logistic regression. (3) Results: Of 23,953 patients (median age 69.5 years, 42.9% women), 7.0% were Latin American, 1.2% were North African, 0.5% were Asian, 0.5% were Sub-Saharan African, and 89.7% were European. Ethnic minority patients were significantly younger than European patients (median (IQR) age 49.1 (40.5–58.9) to 57.1 (44.1–67.1) vs. 71.5 (59.5–81.4) years, p < 0.001). The unadjusted IHM was higher in European (21.6%) versus North African (11.4%), Asian (10.9%), Latin American (7.1%), and Sub-Saharan African (3.2%) patients. After further adjustment, the IHM was lower in Sub-Saharan African (OR 0.28 (0.10–0.79), p = 0.017) versus European patients, while ICU admission rates were higher in Latin American and North African versus European patients (OR (95%CI) 1.37 (1.17–1.60), p < 0.001) and (OR (95%CI) 1.74 (1.26–2.41), p < 0.001). Moreover, Latin American patients were 39% more likely than European patients to use IMV (OR (95%CI) 1.43 (1.21–1.71), p < 0.001). (4) Conclusion: The adjusted IHM was similar in all groups except for Sub-Saharan Africans, who had lower IHM. Latin American patients were admitted to the ICU and required IMV more often. [ABSTRACT FROM AUTHOR]

Background: Chagas disease (CD) is a chronic parasitic disease caused by Trypanosoma cruzi and is endemic to continental Latin America. In Spain, the main transmission route is congenital. We aimed to assess adherence to regional recommendations of universal screening for CD during pregnancy in Latin American women in the province of Alicante from 2014 to 2018. Methodology/Principal findings: Retrospective quality study using two availa sources: 1) delivery records of Latin American women that gave birth in the 10 public hospitals of Alicante between January 2014 and December 2018; and 2) records of Chagas serologies carried out in those centers between May 2013 and December 2018. There were 3026 deliveries in Latin American women during the study period; 1178 (38.9%) underwent CD serology. Screening adherence ranged from 17.2% to 59.3% in the different health departments and was higher in Bolivian women (48.3%). Twenty-six deliveries (2.2%) had a positive screening; CD was confirmed in 23 (2%) deliveries of 21 women. Bolivians had the highest seroprevalence (21/112; 18.7%), followed by Colombians (1/333; 0.3%) and Ecuadorians (1/348; 0.3%). Of 21 CD-positive women (19 Bolivians, 1 Colombian, 1 Ecuadorian), infection was already known in 12 (57.1%), and 9 (42.9%) had already been treated. Only 1 of the 12 untreated women (8.3%) was treated postpartum. Follow-up started in 20 of the 23 (87.0%) neonates but was completed only in 11 (47.8%); no cases of congenital transmission were detected. Among the 1848 unscreened deliveries, we estimate 43 undiagnosed cases of CD and 1 to 2 undetected cases of congenital transmission. Conclusions/Significance: Adherence to recommendations of systematic screening for CD in Latin American pregnant women in Alicante can be improved. Strategies to strengthen treatment of postpartum women and monitoring of exposed newborns are needed. Currently, there may be undetected cases of congenital transmission in our province. Author summary: Chagas disease (CD) is a neglected tropical disease endemic to Latin America. In absence of the triatomine vector in Spain, congenital (mother-to-infant) transmission is the main infection route. The Valencian Community has recommended universal screening for CD in pregnant Latin American women since 2007. In our study we analyzed adherence to that recommendation in Alicante province from 2014 to 2018, finding that it is quite low (38.9% overall, 48.3% in Bolivians) and heterogeneous between health departments. Among unscreened pregnant women during the study period, we estimate that there could be 43 undiagnosed cases of CD and 1 to 2 undetected infections in infants. We also observed very low adherence to treatment after delivery in CD-diagnosed, untreated women (8.3%), and a low rate of completed follow-up in newborns at risk of vertical infection (47.8%). We need to improve the program in order to achieve universal CD screening in Latin American (and especially Bolivian) pregnant women, to enhance CD treatment in postpartum women, and to improve monitoring in exposed newborns through a well-established notification and follow-up circuit. [ABSTRACT FROM AUTHOR]

Objective: A current assessment of case reports of possible drug-induced pancreatitis is needed. We systematically reviewed the case report literature to identify drugs with potential associations with acute pancreatitis and the burden of evidence supporting these associations. Methods: A protocol was developed a priori (PROSPERO CRD42017060473). We searched MEDLINE, Embase, the Cochrane Library, and additional sources to identify cases of drug-induced pancreatitis that met accepted diagnostic criteria of acute pancreatitis. Cases caused by multiple drugs or combination therapy were excluded. Established systematic review methods were used for screening and data extraction. A classification system for associated drugs was developed a priori based upon the number of cases, re-challenge, exclusion of non-drug causes of acute pancreatitis, and consistency of latency. Results: Seven-hundred and thirteen cases of potential drug-induced pancreatitis were identified, implicating 213 unique drugs. The evidence base was poor: exclusion of non-drug causes of acute pancreatitis was incomplete or poorly reported in all cases, 47% had at least one underlying condition predisposing to acute pancreatitis, and causality assessment was not conducted in 81%. Forty-five drugs (21%) were classified as having the highest level of evidence regarding their association with acute pancreatitis; causality was deemed to be probable or definite for 19 of these drugs (42%). Fifty-seven drugs (27%) had the lowest level of evidence regarding an association with acute pancreatitis, being implicated in single case reports, without exclusion of other causes of acute pancreatitis. Discussion: Much of the case report evidence upon which drug-induced pancreatitis associations are based is tenuous. A greater emphasis on exclusion of all non-drug causes of acute pancreatitis and on quality reporting would improve the evidence base. It should be recognized that reviews of case reports, are valuable scoping tools but have limited strength to establish drug-induced pancreatitis associations. Registration: CRD42017060473. [ABSTRACT FROM AUTHOR]

Leishmaniasis occurs in <1% of solid organ and hematopoietic stem cell transplant recipients in endemic countries in which transplants are performed. Visceral leishmaniasis ( VL) makes up the bulk of reported cases. The onset generally occurs months after transplantation and the mode of acquisition is often impossible to determine, but de novo vector-borne infection and reactivation of inapparent infection are thought to be the principal means. The potential role of clinically inapparent donor infection is uncertain and screening is not currently recommended, nor is it recommended for recipients from endemic areas, some of whom may have detectable circulating protozoan nucleic acid. While transplant recipients with VL often present with the non-specific findings of fever and cytopenia, the additional presence of hepatosplenomegaly in patients from endemic areas should lead to a directed diagnostic evaluation with bone marrow examination and PCR testing of marrow and peripheral blood having a high yield. Management may often be complicated by the presence of concomitant infections. A lipid formulation of amphotericin B is the preferred treatment, especially for VL, but the relapse rate in transplant recipients is approximately 25%. PCR monitoring of blood for either secondary prophylaxis or preemptive therapy requires further study. [ABSTRACT FROM AUTHOR]

Leishmania and HIV coinfection is a major health problem in more than 35 countries worldwide. The impaired immune function of visceral leishmaniasis/HIV-coinfected patients may: (i) favor the reactivation of latent Leishmania infection; (ii) induce a more severe presentation of visceral leishmaniasis; (iii) cause a poorer therapeutic response; and (iv) increase the risk of relapse after treatment. One of the major challenges in the management of visceral leishmaniasis/HIV coinfection is developing an effective drug therapy that not only resolves the first episode of visceral leishmaniasis but also prevents relapse. However, scarce evidence and data are available on the optimal therapy for visceral leishmaniasis/HIV coinfection. In our study we reviewed the efficacy of several drugs currently employed for visceral leishmaniasis in HIV patients and current knowledge of secondary prophylaxis. Additionally, we reviewed a set of ongoing clinical trials that are being performed to evaluate the efficacy of new therapeutic regimens for visceral leishmaniasis in patients with and without HIV. Finally, other therapeutic strategies based on immunotherapy, vaccination, or screening for latent leishmaniasis infection in HIV patients are reviewed. Apart from being potentially useful in clinical practice, the results obtained in our study highlight the need for further research on the management of visceral leishmaniasis/HIV coinfection [ABSTRACT FROM AUTHOR]

Background: Chagas disease (CD) is endemic in Central and South America, Mexico and even in some areas of the United States. However, cases have been increasingly recorded also in non-endemic countries. The estimated number of infected people in Europe is in a wide range of 14000 to 181000 subjects, mostly resident in Spain, Italy and the United Kingdom. Methodology/Principal Findings: Retrospective, observational study describing the characteristics of patients with CD who attended the Centre for Tropical Diseases (Negrar, Verona, Italy) between 2005 and 2013. All the patients affected by CD underwent chest X-ray, ECG, echocardiography, barium X-ray of the oesophagus and colonic enema. They were classified in the indeterminate, cardiac, digestive or mixed category according to the results of the screening tests. Treatment with benznidazole (or nifurtimox in case of intolerance to the first line therapy) was offered to all patients, excluding the ones with advanced cardiomiopathy, pregnant and lactating women. Patients included were 332 (73.9% women). We classified 68.1% of patients as having Indeterminate Chagas, 11.1% Cardiac Chagas, 18.7% as Digestive Chagas and 2.1% as Mixed Form. Three hundred and twenty-one patients (96.7%) were treated with benznidazole, and most of them (83.2%) completed the treatment. At least one adverse effect was reported by 27.7% of patients, but they were mostly mild. Only a couple of patients received nifurtimox as second line treatment. Conclusions/Significance: Our case series represents the largest cohort of T. cruzi infected patients diagnosed and treated in Italy. An improvement of the access to diagnosis and cure is still needed, considering that about 9200 infected people are estimated to live in Italy. In general, there is an urgent need of common guidelines to better classify and manage patients with CD in non-endemic countries. Author Summary: Chagas disease is endemic in Central and South America, Mexico and part of the United States. However, migration flows permitted a diffusion outside those borders, so nowadays there are infected people living in Europe, mostly in Spain, Italy and the United Kingdom. This manuscript describes the patients with Chagas disease attended at a referral center in Italy between 2005 and 2013. They were classified into different categories according to the presence of possible cardiac and/or gastrointestinal involvement: one third of patients presented signs of organ damage. Ninety-seven percent of the infected patients were treated with benznidazole, 16% had to stop the treatment due to adverse events. [ABSTRACT FROM AUTHOR]

Visceral leishmaniasis is hypoendemic in Mediterranean countries, where it is caused by the flagellate protozoan Leishmania infantum. VL cases in this area account for 5%–6% of the global burden. Cases of Leishmania/HIV coinfection have been reported in the Mediterranean region, mainly in France, Italy, Portugal, and Spain. Since highly active antiretroviral therapy was introduced in 1997, a marked decrease in the number of coinfected cases in this region has been reported. The development of new diagnostic methods to accurately identify level of parasitemia and the risk of relapse is one of the main challenges in improving the treatment of coinfected patients. Clinical trials in the Mediterranean region are needed to determine the most adequate therapeutic options for Leishmania/HIV patients as well as the indications and regimes for secondary prophylaxis. This article reviews the epidemiological, diagnostic, clinical, and therapeutic aspects of Leishmania/HIV coinfection in the Mediterranean region. [ABSTRACT FROM AUTHOR]

In the wake of the HIV epidemic, visceral leishmaniasis (VL), a disseminated protozoan infection caused by the Leishmania donovani complex, has been re-emerging, particularly in North Ethiopia where up to 40% of patients with VL are co-infected with HIV. Management of VL in HIV co-infection is complicated by increased drug toxicity, and high treatment failure and relapse rates with all currently available drugs, despite initiation of antiretroviral treatment. Tackling L. donovani infection before disease onset would thus be a logical approach. A screen-and-treat approach targeting latent or the early stage of infection has successfully been implemented in other HIV-associated opportunistic infections. While conceptually attractive in the context of VL–HIV, the basic understanding and evidence underpinning such an approach is currently lacking. Prospective cohort studies will have to be conducted to quantify the risk of VL in different risk groups and across CD4 cell count levels. This will allow developing clinical prognostic tools, integrating clinical, HIV and Leishmania infection markers. Interventional studies will be needed to evaluate prophylactic or pre-emptive treatment strategies for those at risk, ideally relying on an oral (combination) regimen. Issues like tolerability, emergence of resistance and drug interactions will require due attention. The need for maintenance therapy will have to be assessed. Based on the risk–benefit data, VL risk cut-offs will have to be identified to target treatment to those most likely to benefit. Such a strategy should be complemented with early initiation of antiretroviral treatment and other strategies to prevent HIV and Leishmania infection. [ABSTRACT FROM AUTHOR]

Copyright of Gaceta Médica Boliviana is the property of Universidad Mayor de San Simon, Facultad de Medicina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Like any other drug, antimicrobial drugs are prone to pharmacokinetic drug interactions. These drug interactions are a major concern in clinical practice as they may have an effect on efficacy and toxicity. This article provides an overview of all published pharmacokinetic studies on drug interactions of the commonly prescribed antimicrobial drugs oxazolidinones, rifamycines, macrolides, fluoroquinolones, and beta-lactams, focusing on systematic research. We describe drug-food and drug-drug interaction studies in humans, affecting antimicrobial drugs as well as concomitantly administered drugs. Since knowledge about mechanisms is of paramount importance for adequate management of drug interactions, the most plausible underlying mechanism of the drug interaction is provided when available. This overview can be used in daily practice to support the management of pharmacokinetic drug interactions of antimicrobial drugs. [ABSTRACT FROM AUTHOR]

As a result of population migration, Chagas disease is no longer limited to the North and South American continents. In HIV-infected patients, chronic infection by Try-panosoma cruzi behaves as an opportunistic infection in severely immunosuppressed patients and is responsible for high morbidity and mortality. Unlike other opportunistic infections, information on the natural history, diagnosis, treatment, and prevention of Chagas disease is scarce. Spain has the highest number of cases of Chagas disease outside the North and South American continents, and coinfection with HIV is increasingly prevalent. In this article, the Spanish Society for Tropical Medicine and International Health (Sociedad Española de Medicina Tropical y Salud Interna-cional) reviews the current situation of coinfection with HIV and T. cruzi infection and provides guidelines on the diagnosis, treatment, and prevention in areas where Cha-gas disease is not endemic. It also identifies areas of uncertainty where additional research is necessary. [ABSTRACT FROM AUTHOR]

The article focuses on the research article presented by Ana Fernández-Villegas and colleagues on the follow-up of chagasic patients after the treatment of benznidazole with multiple serological markers. It mentions that serological tests using soluble proteins or a cocktail of recombinant proteins derived from trypanosoma cruzi (T. cruzi) as antigens, are sensitive for the diagnosis of Chagas' disease

Copyright of Tropical Medicine & International Health is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND AND OBJECTIVE: Drug-drug interactions (DDIs) are preventable medication errors associated with potentially serious adverse events and death. Several studies have examined the prevalence of potential DDIs among ambulatory patients in various countries. Limited recent data on the prevalence of potential DDIs in Italy are available in the medical literature. The objective of this study was to estimate the prevalence of clinically important potential DDIs among the approximately 4 million residents of Regione Emilia-Romagna (RER), Italy, and to examine possible predictors of potential DDI exposure. METHODS: A retrospective follow-up study of 2004 outpatient prescription data from RER was conducted. A previously published list of clinically important potential DDIs was refined to include only pairs of drugs in which both drugs were reimbursed by the 2004 Italian National Formulary. A potential DDI was defined as the presence of a minimum 5-day overlap in days supply for drugs in an interacting pair. The 1-year period prevalence of each potential DDI was quantified. A logistic regression analysis was conducted to examine patient characteristics as predictors of potential DDIs. RESULTS AND DISCUSSION: The list of clinically important potential DDIs included 12 drug pairs that could be captured using the RER database. These 12 potential DDIs occurred 8894 times in the RER population in 2004. The most commonly identified potentially interacting medication pairs were warfarin and non-steroidal anti-inflammatory drugs (6824 cases), theophylline/aminophylline and ciprofloxacin/fluvoxamine (930), and warfarin and barbiturates (567). Odds of exposure were highest among those aged 65 years or older, males, and those with more chronic conditions. Odds of exposure increased 1.39 times with each addition of a prescription medication. CONCLUSION: A substantial number of clinically important potential DDIs were identified, particularly among warfarin users. Awareness of the most prevalent potential DDIs can help practitioners prevent concomitant use of these dangerous medication combinations. [ABSTRACT FROM AUTHOR]

Objective: To report a significant in crease in the serum levels of digoxin associated with the use of Clarithromycin in six patients under going renal replacement therapy. Case summary: All six patients were males with end-stage renal disease and in need of renal replacement therapy. Four patients were anuric. The mean age was 78.8±5.8 (66-83) years. All patients except one, who was treated by hemofiltration, were treated by hemodialysis. All patients except one, who had been treated with metildigoxin (0.35 mg/week), were also taking digoxin (0.375 mg/week). Clarithromycin was administered at a dose of 200-400 mg/day for the treatment of bronchitis in all patients. The concomitant administration of clarithromycin increased serum digoxin levels from 1.8-4.0-fold in all cases. In two of six cases, a high probability of digoxin intoxication and suspicion of digoxin intoxication was evident. In three of six cases, serum digoxin levels increased within 12 days after the co-administration of clarithromycin, while in the other three cases, serum digoxin levels were increased 53-190 days after the administration of clarithromycin. Conclusion: The simultaneous administration of clarithromycin caused an in crease in digoxin levels in six patients undergoing renal replacement therapy. The increase in the serum digoxin can be attributed to the inhibition of P-glycoprotein in the intestine and/or bile capillary rather than the kidney by clarithromycin since renal function was dramatically impaired, and four of the patients were anuric. The issue of why serum digoxin levels were increased so late in three patients undergoing renal replacement is unclear. However, this interaction seemed to be clinically significant even in ESRD patients, whose renal function was highly impaired. The simultaneous use of digoxin and clarithromycin should be avoided even in patients under going renal replacement therapy whose renal function is impaired, since digoxin levels may increase unexpectedly. [ABSTRACT FROM AUTHOR]

Aims A clinically important interaction between the cardiac glycoside digoxin and the antibiotic clarithromycin has been suggested in earlier reports. The aim of this study was to investigate the extent of the interaction and the relative contribution of different mechanisms. Methods In a randomized, placebo-controlled, double-blind cross-over design single oral doses of 0.75 mg digoxin with oral coadministration of placebo or 250 mg clarithromycin twice daily for 3 days were administered to 12 healthy men. Additionally, three of the subjects received single intravenous doses of 0.01 mg kg-1 digoxin with oral placebo or clarithromycin. Digoxin plasma and urine concentrations were determined by a highly sensitive radioimmunoassay. Results Oral coadministration of clarithromycin resulted in a 1.7-fold increase of the area under the digoxin plasma concentration–time curve [mean AUC(0,24) ± SD 23 ± 5.2 vs. 14 ± 2.9 µg L-1 h; 95% confidence interval (CI) on the difference 7.0, 12; P = 0.002] and in a reduction of the nonglomerular renal clearance of digoxin [mean ClRng (0, 24) ± SD 34 ± 39 vs. 57 ± 41 mL min-1 ; 95% CI on the difference 7.2, 45; P = 0.03]. The ratios of mean digoxin plasma concentrations with and without clarithromycin were highest during the absorption period of clarithromycin. After intravenous administration digoxin AUC(0,24) increased only 1.2-fold during coadministration of clarithromycin. Conclusions Increased oral bioavailability and reduced nonglomerular renal clearance of digoxin both contribute to the interaction between digoxin and clarithromycin, probably due to inhibition of intestinal and renal P-glycoprotein. [ABSTRACT FROM AUTHOR]

At the moment no country has a policy designed to control or prevent drug resistance in leishmaniasis. The risk of resistance is high in areas of anthroponotic visceral leishmaniasis, for example North Bihar, India, where the rate in some areas is 60%. Post-epidemic Sudan is also at risk. Zoonotic areas in which HIV co-infection is common could also be at risk as sandflies can become infected from co-infected individuals. Many factors determine the choice of drug for the treatment of visceral leishmaniasis, and drug resistance may not be the over-riding priority. In anthroponotic areas reduction in transmission through public health measures will be important, but the use of two drugs in combination should be seriously considered. Pharmacokinetic and other features of the drugs available, relevant to their use in combination are discussed and tentative suggestions made concerning trials of possible combinations. These include miltefosine plus paromomycin and allopurinol plus an azole. Lessons may be learnt from the experiences of similar problems in malaria, leprosy and tuberculosis. Guidelines are offered for the introduction of policies to use drugs in combination, which differ between anthroponotic and zoonotic areas of transmission. [ABSTRACT FROM AUTHOR]