BOSTON (WWLP) – State health officials announced on Friday the fourth and fifth cases of West Nile Virus in Massachusetts this year.

The Massachusetts Department of Public Health said one of the residents in Norfolk County is in her 40s and developed a milder form of the disease. She was never hospitalized. The other resident is in his 80s from Middlesex County, and was hospitalized, but has been discharged.

Both people were diagnosed with West Nile Virus by testing completed on Friday by the Massachusetts State Public Health Laboratory.

The identification of multiple human cases from a defined geographic area indicates that the risk to people from West Nile Virus has increased from moderate to high in the area.

Communities at high risk for West Nile Virus for the remainder of the season:

  • Arlington
  • Belmont
  • Boston
  • Brookline
  • Cambridge
  • Chelsea
  • Everett
  • Medford
  • Newton
  • Revere
  • Somerville
  • Watertown
  • Winthrop