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.
T he map shows the state of Chihuahua in northern Mexico. The state capital is the city of Chihuahua (2009 population: 839,000) . Chihuahua is the largest state in Mexico in area: 247,087 square kilometers (95,401 square miles). The stateâs population is 3,422,047 (CONAPO 2010 estimate).