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West Nile Virus & US

July 4, 2011 by staff 

West Nile Virus & USWest Nile Virus & US, The Connecticut Department of Public Health Program of the Mosquito State Management has announced that the Bridgeport mosquitoes tested positive for West Nile virus (West Nile Virus) 21 June – the first cases identified by CAES (Agricultural Experiment Station Connecticut) in 2011.

Theodore G. Andreadis, Ph.D., Chief Medical Entomologist, CAES, said:

“The detection of infected mosquitoes in June suggests that the initial amplification of the virus activity. With warmer temperatures, the isolation of West Nile virus in mosquitoes can be expected to increase and expand to other areas of the state throughout the summer. ”

Connecticut Department of Public Health Commissioner Dr. Jewel Mullen, said:

“The finding of the CAES provides an early warning that the virus is circulating again this year in Connecticut. We encourage residents and visitors to Connecticut to take measures to prevent mosquito bites, while spending time outdoors this purpose week and throughout the summer and early fall. ”

Connecticut authorities last year to report that WNV positive mosquitoes caught in 24 municipalities, the first trapped June 14, 2010. Eleven people in the state were reported with infections of West Nile virus last year.

CAES has 91 mosquito collecting stations in 72 municipalities. Traps were set on Monday and Thursday night. Samples are collected every ten days at each site in rotation. Scientists say the pool (collect) to mosquitoes for testing according to the date and place of collection, and species.

Mosquitoes are tested for the virus that are of concern to public health. The results are published on the CAES website.

Tennessee – State Laboratory of Public Health West Nile virus confirmed in mosquitoes in Memphis, Nashville and Knoxville. State officials to urge citizens to use repellent and take other precautions to prevent bites from mosquitoes and other insects.

Abelardo C. Moncayo, PhD, director of Vector-Borne Diseases Program for the Tennessee Department of Health, said:

“These positive results tell us that people bitten by mosquitoes in Tennessee could be at risk of contracting West Nile virus. We can help control mosquito populations and reduce the risk of infection by emptying containers with standing water, keeping doors and windows with mosquito nets, and using mosquito repellent when outside. ”

Authorities report that Tennessee is the tenth so far in 2011 to show positive results for West Nile virus in mosquitoes, horses and birds. Last year, Tennessee had four human cases of WNV infection. The record was in 2002, with 56 cases.

South Dakota – Dr. Lon Kightlinger, State Epidemiologist Department of Health of South Dakota, said:

“We expect more mosquitoes this summer with so many flood-affected areas. West Nile has been detected in mosquitoes in neighboring states (Iowa and North Dakota) and the peak transmission period for the virus is approaching what is now it’s time to get in the habit of using insect repellent. ”

South Dakota officials reported that the peak WNV transmission occurs from mid-July to mid September. There have been more than 1,700 human cases in the state since 2002, including 26 deaths.

Ohio – two mosquito breeding sites in the city of Columbus has tested positive for WNV.

Ohio Department of Health director Ted Wymyslo, MD, said:

“The mosquitoes that transmit West Nile virus have arrived. To protect yourself and your loved ones from mosquito bites, be sure to use mosquito repellent and eliminating standing water from your property.”

No human cases have been reported in the state so far. Ohio has reported cases of human WNV infection each year since 2002. In 2002 there were 441 cases, 108 in 2003, 12 in 2004, 61 in 2005, 48 in 2006, 23 in 2007, 15 in 2008, two in 2009 and 5 last year.

According to the CDC “2011 Infections Human West Nile Virus in the United States” until June 28 has been a case of human infection with West Nile virus reported in Mississippi – not a case of neuroinvasive disease.

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