Done again and again, they circled and beat down the disease. Smallpox is caused by variola virus. It is contagious and will spread from person to person. A fever gives way to a rash, that turns ...
STATE COLLEGE, Pa. — A chickenpox outbreak has been reported at Penn State University. University Health Services confirmed three cases of the virus at the University Park campus. Officials say ...
Al primer momento del contagio, cuando el virus de la viruela símica entra en el organismo, este se multiplica sin causar síntomas visibles. Después de unos días, inicia la fase prodrómica ...
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