Infección por VPH en niñas sin contacto sexual
SUMMARY Objective: Analize the associated factors with human papilloma virus infection in the descendants who are under the age of 8 years old living with infected patients with the virus. Methods: It was made a descriptive, cross-sectional and non-experimental study. The sample was intentional and non probabilistic, integrated by twenty-eight (28) patients with a diagnosis of human papilloma virus infection, typified by polimerase chain reaction seated in their medical history and that they had girls under the age of 8 years. It was made a vulvoscopy to the children and sampling by polimerase chain reaction. Results: It was found that in 42.9 % the person responsible for the cleanliness of the descendant was her
Abstract ::: After prolonged selection, two hybrid strains of Culex tarsalis were evolved that were highly resistant to infection following ingestion of western equine encephalomyelitis virus. These strains were greater than 25,000-fold more resistant than the most susceptible parental strain when fed on viremic chicks. Resistance was associated with a mesenteronal barrier since both refractory and parental strains were equally susceptible to infection by intrathoracic inoculation. Susceptibility was dominant, possibly incompletely dominant, over resistance. Inheritance was probably polyfactorial but this could not be determined with certainty since a small proportion of individuals appeared to become infected by nongenetic mechanisms.