Coronaviruses are a large family of viruses that usually infect animals but can sometimes evolve and spread to humans. Public health officials have confirmed more than 300 cases of the new coronavirus, labeled “2019-nCoV,” in China. Some of the patients …
Key points HIV infection can be transmitted from an infected mother to her fetus during pregnancy, during delivery, or by breastfeeding. Maternal transmission to the fetus occurs most commonly in the perinatal period. (50-65%) It is very unlikely that mother-to-child …
There is a causal relationship between the removal of tonsils and the onset of bulbar poliomyelitis within the time interval corresponding to the incubation period of the disease (approximately one month). Furthermore, it appeared that the relative frequency of occurrence …
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