Thursday, January 24, 2008

Possible Viral Agents Part 2


Poliomyelitis Viruses

A microscopic image shows poliomyelitis viruses, which enter the body through the nose and mouth and destroy nerve cells by multiplying rapidly inside of them. It can cause permanent paralysis. An effective vaccine have developed and poliomyelitis has been nearly eliminated in developed countries.

Taken from

Hepatitis A

Hepatitis A magnified 225,000 times

Hepatitis E
Hepatitis E
Taken from

Yellow Fever Virus
An electron micrograph of Yellow Fever Virus virions. Virions are spheroidal, uniform in shape and are 40-60nm in diameter. The name "Yellow Fever" is due to the ensuing jaundice that affects some patients. The vector is the Aedes aegypti or Haemagogus spp. mosquito

Schematic illustration of the relation between climate and the transmission of tick-borne diseases in humans. In this study, the different direct and indirect climate-dependent interactions, here shown within the yellow field, have been treated as a black box.

Taken from


1) Geo, F.B., Janet, S.B., Stephen, A.M. (2001). Medical Microbiology, Twenty Third Edition: The McGraw-Hill Companies
2)>search>virus name
3) lecture notes from medical microbiology

Lin Juexiu

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