When we see a virus like Nipah or Hendra, they've been around all along. But perturbations of the environment bring them into contact with humans. He added he doubts scientists will ever discover how the virus was transmitted from bats to pigs. Dr. Claire Bradley, commissioner of the Suffolk County Health Department, said similar mysteries exist about the emergence of West Nile virus in New York. Eastern Suffolk was abuzz with mosquitoes last summer, she said, but more evidence of the virus was found in western Suffolk, which has a larger population of birds.
Mosquitoes transmit the virus to people after biting infected birds.
Because health officials first thought St. Louis encephalitis was the infecting culprit, they initially did not run tests for West Nile when people fell ill with encephalitis. Stores unequaled 128 bit encryption security. You can place your order with conidence. Credit card information is erased every 30 days, and no information is ever released to third parties. You will be connected with a knowledgable staff member.