According to data trap results taken on July 25, mosquitoes carrying West Nile virus were detected in every Staten Island ZIP code, according to the Health Department. The city has been conducting aerial larviciding treatments of marshes and wetlands across the borough, according to a recent announcement.

The New York City Department of Health has announced additional days for mosquito spraying, as the number of mosquitoes that have tested positive for the West Nile virus has climbed to 272. As of Saturday Staten Island and Queens reported the most positive results,