Varicella Zoster Virus Varicella zoster virus (VZV) causes varying illnesses depending on who it infects. It is spread through respiratory droplets and direct contact with vesicular fluid. Transmission can also be from mother to child in utero through the placenta. The virus incubates for 10-21 days...

Pinworms, also known as Enterobius vermicularis, are the most common cause of worm infections in the United States. They often infect school-aged children and are easily transmitted between people who live in the same household. The life cycle of pinworms begins with eggs being deposited around the ...