Outbreak of West Nile virus has taken place at Dallas County. About 200 confirmed cases of it have been reported in the region. For the very first time, aerial spraying of a pesticide has been called by the Mayor.

The situation is run out of hands as about 10 people have succumbed to death because it. Since 1966, it is the worst form of mosquito-borne disease. In 1999, first outbreak of West Nile was reported which has since then causing havoc in the US.

Centers for Disease Control and Prevention have hinted that Dallas might have contributed to the virus outbreak in the out regions of the US. In a report, it has been reported that all over the US about 693 cases of West Nile has been reported.

Director of Centers for Disease Control and Prevention, Dr. Lyle R. Petersen said, "But in Chicago, we've already observed high numbers of West Nile virus-infected mosquitoes. This is looking like a large regional event. we do expect more cases".

Although spraying has been called in the regions of Dallas, about 1,700 people have asked authorities not to spray as it is ineffective over the virus spreading mosquitoes. People have pleaded to the authorities through a signed petition.