Chickenpox is an illness caused by the varicella zoster virus (VZV), which is a member of the herpesvirus family.The illness lasts between 5 and 10 days causing an itchy, blister-like rash, fever, headache, fatigue, and loss of appetite.hickenpox is an illness caused by the varicella zoster virus (VZV), which is a member of the herpesvirus family.
Mexicoâs ten largest cities (2009 population) are: Mexico City 19,982,000 (Metropolitan Area) Guadalajara 4,365,000. Monterrey 3,986,000. Puebla 2,647,000.
What cities lie within the most populated region of mexico? The Central Mexican Plateau is the most populated region in Mexico. Some cities within the plateau include Mexico City (21.1 million), Puebla (2.7 million), Toluca (1.8 millioâ¦n), Leon (1.8 million), Queretaro (1.1 million) and Cuernavaca (0.9 million). 3 people found this useful.