It is an acute, highly infectious disease caused by a Varicella-Zoster virus (V-Z virus). Chickenpox and Herpes Zoster are now considered as different host responses to the same virus. There is vesicular rash (fluid filled lesions) accompanied by fever. It usually occurs in children under 10 years of age. The disease will be severe if it occurs in adults. One attack gives durable immunity.
Second attack is rare. The source of infection is usually a case of chickenpox. The virus is present in secretions from the mouth & lesions of skin and mucosa. Most of the patients are infected by person-to-person contact.
For more details go to the below link...
http://www.indiastudychannel.com/resources/49754-Chicken-pox-Highly-infectious-disease.aspx
Monday, February 9, 2009
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