Human Case of West Nile Virus Confirmed in Central Contra Costa County

June 20, 2014 12:10 pm · 5 comments


Contra Costa Public Health officials announced today that the county’s first human case of West Nile virus of the year has been confirmed. The case involved a man in his 60s from Central Contra Costa County. The virus has already been identified in birds in Central and East Contra Costa County.

The Contra Costa resident was hospitalized, but has been released from the hospital and is recovering, said Erika Jenssen, Contra Costa Public Health’s Communicable Disease Programs Chief. The virus is typically spread by the bite of an infected mosquito. There have been no fatalities related to

West Nile virus in Contra Costa since 2006, and there are typically between three and five cases reported each year in Contra Costa. In 2013 we had five human cases and all recovered.

“The risk of becoming ill from the bite of a mosquito infected with West Nile virus is low. Most people who become infected will not develop symptoms and will not need to seek care,” Jenssen said. “However, in some cases, it can be very serious. This is a reminder that summer is here and it’s important to reduce the risk of West Nile virus by taking precautions to avoid being bitten by mosquitoes.”

West Nile Virus symptoms are usually mild, such as fever, headache and body ache. However, people over 50 years of age and those with diabetes and/or hypertension may be more vulnerable to severe symptoms.

To avoid being bitten by mosquitos and infected with West Nile, people can take the following steps:

  • Avoid activity outside when mosquitoes are most active, especially at dawn and dusk.
  • When outdoors, wear long pants, long sleeve shirts and other protective clothing.
  • Apply insect repellent that contains DEET, picaradin, oil of lemon eucalyptus or IR3535 according to label instructions.
  • Make sure that doors and windows have tight fitting screens. Repair or replace screens that have tears or holes.
  • Eliminate all sources of standing water that can support mosquito breeding.
  • Contact Contra Costa Mosquito and Vector Control if there is a significant mosquito problem where you live or work, including abandoned swimming pools.
  • Report dead birds by calling 1-877-WNV-BIRD (877-968-2473).

For more information about the West Nile virus, go to or

justice June 20, 2014 at 4:44 PM

im glad we have the vector control. there would be all kinds of virus’ everywhere!!!! not to mention the annoyance of those dang mosquitoes!

MEe June 20, 2014 at 5:28 PM

Was my comment pulled?

Atticus Thraxx June 20, 2014 at 5:55 PM

Mosquitoes are about the only insect I kill on sight. No parley granted, no quarter given. Vile beasts.

J June 21, 2014 at 7:39 PM

Should be an interesting summer.. Hooe it doesnt get out of control

funny man June 22, 2014 at 12:06 AM

this outbreak shouldnt be too bad. West niles is childs play compared to some of the germs the government has in store for the populace.
people should be more worried about the ebola outbreak in africa, the poor border control and its international implications.
Madagascar has already closed their ports!

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