HIV symptoms vary by the stage of infection, known as acute HIV infection (Stage 1), chronic HIV infection (Stage 2), and AIDS (Stage 3). During primary infection, the symptoms are caused by the virus ...

Moreover, other rickettsias, such as those causing epidemic typhus, which are not usually thought of as causes of pneumonia, may produce symptoms and pulmonary lesions that are indistinguishable ...

Laredo Public Health reveals Webb County's top infectious diseases, which include whooping cough and chickenpox, urging ...