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El hombre siempre ha estado preocupado del proceso de la concepción de su propia especie, sea para favorecerla como también para evitarla. En todas las culturas, desde las más antiguas hasta las presentes, encontramos evidencias documentadas sobre este asunto. No siempre el proceso de concepción y contraconcepción fue visto con una connotación moral. Hubo distintas ópticas para evaluar la licitud o ilicitud de estos actos. Este artículo examinará la contraconcepción en las culturas que precedieron a la nuestra.

No presenta resumen

During the 2013 dengue epidemic in Luanda, Angola, 811 dengue rapid diagnostic test-positive cases were reported to the Ministry of Health. To better understand the magnitude of the epidemic and identify risk factors for dengue virus (DENV) infection, we conducted cluster surveys around households of case-patients and randomly selected households 6 weeks after the peak of the epidemic. Of 173 case cluster participants, 16 (9%) exhibited evidence of recent DENV infection. Of 247 random cluster participants, 25 (10%) had evidence of recent DENV infection. Of 13 recently infected participants who had a recent febrile illness, 7 (54%) had sought medical care, and 1 (14%) was hospitalized with symptoms consistent with severe dengue; however, none received a diagnosis of dengue. Behavior associated with protection from DENV infection included recent use of mosquito repellent or a bed net. These findings suggest that the 2013 dengue epidemic was larger than indicated by passive surveillance data.