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How deadly is the West Nile virus?



(Meredith / CNN) – We hear a lot about West Nile virus (WNV), a virus that is transmitted in the summer mainly from infected mosquitoes to humans. But what exactly is West Nile and how deadly is it?

How does it spread?

The West Nile virus is normally spread by the bite of infected mosquitoes and is not spread by accidental human-to-human contact. In rare cases, WNV can be spread by blood transfusions, organ transplantation, laboratory or mother-to-child exposure.

Symptoms

Symptoms of West Nile infection are:

  • fatigue
  • fever [19659007headache
  • body pain
  • rash
  • swollen lymph nodes

80 percent of those infected show no symptoms

  • According to the Centers for Disease Control (CDC), less than one percent of infected people develop a serious neuroinvasive disorder, such as encephalitis (meningitis) or meningitis (inflammation of the protective membranes of the brain and spinal cord)

    There is no vaccine or specific Treatment for WNV. The most effective prevention measure is the prevention of mosquito bites by insect repellents and the wearing of protective clothing outdoors.

    Short Story

    1

    937: The first case of West Nile virus is reported in Uganda. It is distributed throughout Africa, Central Asia and the Middle East.

    August, 1999: The first cases of West Nile encephalitis in the Western Hemisphere are reported in the Bronx and Queens districts of New York City. It is not known how the virus got to the United States.

    CDC Statistics

    2017 (tentative): 2,002 cases of WNV have been reported in 47 states and in the District of Columbia with 121 deaths.

    2016: 2,149 cases of WNV have been reported in 45 states and the District of Columbia with 106 deaths.

    2015: There were 2,175 cases of WNV with 146 deaths in 44 states and the District of Columbia. [19659013] 2014: 2,205 cases of WNV have been reported in 44 states and the District of Columbia with 97 deaths.

    2013: 2,469 cases of WNV have been reported in 47 states and the District of Columbia with 119 deaths.

    2012: 5,674 cases of WNV were reported in 48 states, Puerto Rico and the District of Columbia, with 286 deaths.

    2011: 712 cases of WNV have been reported in 43 states and the District of Columbia with 43 deaths.

    2010: 1,021 cases of WNV have been reported in 40 states and the District of Columbia with 57 deaths.

    2009: 720 cases of WNV were reported in 37 states and the District of Columbia with 32 deaths.

    2008: 1,356 cases of WNV were reported in 45 states and in the District of Columbia with 44 deaths [19659013] 2007: 3,630 cases of WNV were reported in 43 states, with 124 deaths.

    2006: 4,269 cases of WNV have been reported in 43 states and the District of Columbia with 177 deaths.

    2005: 3,000 cases of WNV have been reported in 43 states and the District of Columbia with 119 deaths.

    2004: 2,539 cases of WNV were reported in 41 states and the District of Columbia with 100 deaths.

    2003: 9,862 cases of WNV were reported in 45 states and the District of Columbia, with 264 deaths.

    2002: 4,156 cases of WNV were reported in 39 states and the District of Columbia with 284 deaths.

    2001: 66 cases of WNV were reported in 10 states with 10 deaths.

    2000: Twenty-one cases of WNV were reported in Connecticut, New Jersey and New York, with two deaths.

    1999: New York City Reports 62 Deaths from Seventy WNV

    About 2,000 people have died in the United States since the West Nile virus was first discovered in New York City in 1999.

    [Click here for more info about West Nile virus]

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