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Esophageal cancer is the most common cause of extrapulmonary malignant central airway obstruction (MCAO). MCAO is usually managed by a multidisciplinary approach involving tumor debulking, stent placement, and palliative radiotherapy. MCAO is a challenge in itself; here, it becomes even more challenging as it was accompanied by grade 3 oral submucous fibrosis, nasal synechiae, and multiple enlarged cervical nodes causing excessive compression of the trachea along with acute hypercapnic respiratory failure. Herein, a 65-year-old woman with multiple challenges, where death was imminent, managed with a collaborative approach involving awake nasal intubation in the sitting position and placement of a stent via a flexible bronchoscope, as rigid bronchoscopy was not possible in view of limited mouth opening. Overcoming these challenges led to completing the procedure successfully and palliating the symptoms. [ABSTRACT FROM AUTHOR]

We studied the pattern and duration of viral ribonucleic acid (RNA) shedding in 32 asymptomatic and 11 paucisymptomatic coronavirus disease 2019 cases. Viral RNA shedding in exhaled breath progressively diminished and became negative after 6 days of a positive reverse-transcription polymerase chain reaction test. Therefore, the duration of isolation can be minimized to 6 days. [ABSTRACT FROM AUTHOR]

The article discusses the influence of different weather conditions on the severity of white rust disease in Indian mustard (Brassicajuncea (L.) Czern & Coss) in India. Topics include the benefits of cool and moist climate on the growth and productivity of the crop, the biotrophic oomycete pathogen Albugo candida as the cause of white rust, and a study which examined the progression of white rust due to variable weather in the country.

Background: Since time immemorial tuberculosis (TB) has been and continues to be one of the most significant infections causing human disease. In tropical countries, TB remains a leading cause of death. Human immunodeficiency virus (HIV) epidemic continues to fuel this global TB epidemic. The rapid growth of the HIV epidemic in many countries has resulted in an equally dramatic rise in the estimated number of new TB cases, which present therefore the integration of HIV and TB testing at the primary level is need of the hour. Methods: A prospective study was conducted on newly diagnosed, untreated TB patients aged 15-45 year and patients were screened for HIV infection. Clinico-radiological spectrum of TB among HIV seropositive and seronegative patients was evaluated. Results: Out of a total of 307 patients screened, 17 (5.54%) were found to be HIV seropositive. Seroprevalence was found significantly (P < 0.01, χ2 9.301) more common in 26-35 year age group and higher in Extrapulmonary TB (EPTB) patients than that in pulmonary TB (PTB) patients (9.90% vs 3.4%). Fever was the most common presenting symptom for TB in HIV seropositive patients. On examination pallor (58.82% vs. 15.86%), oral ulcer (35.3% vs. 0.35%) was found more common and on chest X-ray mid-lower zone involvement and mediastinal lymphadenopathy were more common in HIV seropositive patients. Conclusion: HIV seropositivity rates among newly diagnosed TB patients aged 15-45 year was 5.54 percent. The presentation of TB was more often atypical among these patients. Thus, an integrated model of TB and HIV at primary healthcare service delivery is an efficient use of resources that would address the two very important co-epidemics and thereby result in better management. [ABSTRACT FROM AUTHOR]

A 52-year-old female nonsmoker with localized squamous cell carcinoma (T3N1M0) of lung underwent lobectomy with adjuvant chemotherapy. Two years later, the patient had her first locoregional recurrence with adenosquamous cell carcinoma, and pneumonectomy with adjuvant chemotherapy rendered her disease free. Subsequent isolated locoregional recurrence with squamous cell carcinoma 18 months later was treated with chemoradiotherapy and had a complete response. Patient yet again had locoregional recurrence after 4 years and had progressive disease despite subsequent multiple line of treatment with platinum-based chemotherapy, stereotactic body radiation therapy, and nivolumab. This case is unique in presentation due to prolonged survival with multiple line of treatment of recurrent locoregional tumor without distant metastasis and alteration in the histology of tumor during illness. [ABSTRACT FROM AUTHOR]

Field experiments were conducted at CCS Haryana Agricultural University, Hisar during kharif season of 2013 and 2014 to determine the effect of weather parameters on the incidence of pod borer complex on early maturing pigeonpea varieties. The study revealed that the infestation of Helicoverpa armigera and Maruca vitrata started with the onset of bud initiation and reached its peak at flowering stage. The maximum H. armigera larval population (1.83 larvae plant-1) was recorded in 1st week of July sown crop, whereas, the maximum incidence of M. vitrata (21.17 webs plant-1) was recorded in 2nd week of July sown crop. The larval population of H. armigera was significantly and positively correlated with the maximum temperature, followed by minimum temperature.Incidence of M. vitrata was negatively correlated with evening relative humidity and wind speed which was significant at p ≤ 0.05 level of significance. [ABSTRACT FROM AUTHOR]

Six varieties of wheat and triticale (DDK1029, TL2934, PBW174, DPW 621-50, PBW343 and PBW590) were sown in the field of Indian Institute of Wheat and Barley Research, Karnal, Haryana (IIWBR) and Regional Research Station, Dhaulakuan under Himachal Pradesh Krishi Vishvavidyalaya, H.P during seasons 2012-13 and 2013-14 to study the role of environmental factors on the development of powdery mildew of wheat (Erysiphe graminis f.sp. tritici). The disease development was positively correlated with temperatures and negatively correlated with evening relative humidity and rainfall under field conditions. Best fit regression model was developed with maximum temperature, evening relative humidity and rainfall across the varieties and locations which explains 64% variation in powdery mildew disease. [ABSTRACT FROM AUTHOR]