By the Numbers: West Nile vs. Flu

West Nile virus has been making headlines locally and nationally, so what does this mean for you? Should you be worried and how does this compare with other diseases?

West Nile virus made national news this week with an announcement from the Centers for Disease Control and Prevention.

“We're in the midst of one of the largest West Nile virus outbreaks ever seen in the United States,” said Dr. Lyle Petersen on Tuesday, who is the director of the Division of Vector-borne Infectious Diseases at the CDC.

We are hearing more about West Nile virus and the cases of the virus being found on our doorstep. Each weekday, the Pennsylvania West Nile Control Program releases more positive test results of West Nile found in mosquitoes, bird and other animals. Within the recent weeks, they’ve been reporting human cases. Friday, the program reported a Philadelphian tested postive for the virus. That human case joins one from Lehigh County and two from Delaware County in the past couple weeks.

Other than the news reports and the desire to keep away from painful mosquito bites, most people haven’t had too much interaction with West Niles, because even though we hear about the recent cases, the majority of what is being reported are mosquitoes testing positive for the virus. This year, 2,307 mosquito samples tested positive statewide and nine humans tested positive, according to the West Nile Virus Control Program.

On the other hand, something everyone has had contact with in some form or another is the flu.

Flu Cases
West Nile Cases

“There is no validity to comparing the number of cases of influenza to the number of cases of West Nile as a basis to determine the relative importance of these two diseases.  Both represent significant public health concerns that we closely monitor,” said Holli Senior, Deputy Press Secretary for the Pennsylvania Department of Health.

Medical experts can debate the importance of the diseases, but seeing the number of cases and deaths reported to the Department of Health can help give the rest of us some context.

County Flu Deaths West Nile Deaths Bucks 0 0 Chester 0 0 Delaware 1 0 Lehigh 0 0 Montgomery 1 0 Northampton 1 0 Philadelphia 3 0

“They are two completely different viruses and more importantly their modes of transmission are different. Flu can be transmitted from person to person while West Nile Virus is transmitted by infected mosquitoes. In addition, for both diseases the number of reported cases represents a fraction of the actual number of infections that occur,” Senior said.

Data provided by the Pennsylvania Department of Health based on the virus' "season." Flu numbers are taken from Oct. 1, 2011 through July 31, 2012 and West Nile virus numbers are taken from Jan. 1, 2012 through Aug. 24, 2012.

Chris Whiting August 27, 2012 at 01:57 AM
Claudia, Mosquito Platoon can help. Go to mosquitoplatoon.com for more information.
Chris Whiting August 27, 2012 at 02:01 AM
Tip from Mosquito Platoon: Do not leave a light on outside of your house all night. Mosquitoes will be attracted to your property from up to 2000 feet away.The mosquitoes will live and rest in your bushes and trees waiting for a bloodmeal so they can reproduce. If you need a light for security reasons, install a motion detector.
birdfan August 27, 2012 at 04:53 PM
why is schuylkill township not getting sprayed. They swarm us and our pets soon as we open any outside door. WE can not sit outside on patio or deck. Ive been bitten at least 30 times. Ive called the twnp They dont know anything and had no answers,and said they would call me back but did not even call be back. Other twnsp ships and counties are getting sprayed. WE get Ignored.
birdfan August 27, 2012 at 04:55 PM
what good is it to spary our yard when the rest of the neighborhood is still full of mosquitos. We need our township to step up to the plate and help us. That is schuylkill township (phoenixville)
Chris Whiting August 27, 2012 at 06:56 PM
Call Mosquito Platoon and we will spray your property and dramatically reduce or completely eliminate your disease spreading mosquitoes. 100% money back guarantee or a free re-spray to solve the problem. Yes, we can protect just your property with the 21-Day Barier Spray, even if your neighbors do not get sprayed. The spray sticks to your trees, bushes, ivy, pachasandra and flower beds and continues to kill the insects for 21-Days. Kills the insects that migrate from other properties to yours as soon as they rest and feed on the treated areas in your yard. MosquitoPlatoon.com or 855-867-7729 for more information.


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