Beacon Hill woman first Bostonian diagnosed with West Nile Virus this year

The Boston Public Health Commission says the woman, in her 50s, was hospitalized, but has since been released. However, because she had traveled before becoming ill, the commission has no idea whether she picked up the virus from one of our local infected mosquitoes.

The virus has been detected in mosquito samples from Dorchester, Hyde Park, West Roxbury, Roslindale, East Boston and Jamaica Plain, the commission says, adding that the risk won't go away until the first hard frost.

In most people the virus creates mild flu-like symptoms, but people with compromised immune systems can have bigger problems.