Flu, norovirus and other illnesses circulating in Maine

Flu, norovirus and other illnesses circulating in Maine

The Portland Press Heraldhealth

Key Points:

  • Influenza remains the primary public health concern in Maine, with cases rising steeply to 1,343 for the week ending Jan. 3 and hospitalizations increasing to 147.
  • Norovirus is also circulating at high levels in Maine communities, causing gastrointestinal symptoms that often lead to dehydration, though it is less severe and less tracked than the flu.
  • Respiratory syncytial virus (RSV) cases are declining, likely due to successful uptake of the newly approved RSV vaccine recommended for older adults and pregnant individuals.
  • COVID-19 cases have increased to 610 in the last week of 2025, nearly doubling from the previous week, with vaccinations for both flu and COVID-19 widely available across Maine.