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US CDC: New World Screwworm: Outbreak Moves into Northern Mexico

Please review this information from the U.S. CDC on the reemergence of New World Screwworm (NWS) in Northern Mexico, issued on January 20, 2026. It outlines key actions that clinicians can take to recognize, treat, and report cases of NWS myiasis. As of January 27, 2026, there are no confirmed cases of locally-acquired NWS myiasis in Maine or elsewhere in the United States. Clinicians should consider NWS in the differential for cases of myiasis in live tissue in a person who has traveled to an area where the NWS fly is endemic.

New Maine CDC Respiratory Virus Dashboard Available

The Maine Department of Health and Human Services’ Center for Disease Control and Prevention (Maine CDC) has launched a new Respiratory Virus Dashboard to provide timely, centralized surveillance data on respiratory virus activity in Maine. You can find it on the Maine CDC website at https://www.maine.gov/dhhs/mecdc/data-reports/diseases/infectious-disease/respiratory-dashboard. 

Seasonal Flu

Influenza (flu) is a contagious respiratory illness caused by viruses that infect the nose, throat, and lungs. Some people are at higher risk of serious complications due to influenza. There are two main types of influenza viruses: A and B. The influenza A and B viruses that routinely spread in people (human influenza viruses) are responsible for seasonal epidemics each year. 

Respiratory Syncytial Virus (RSV)

RSV is a respiratory virus that usually causes mild, cold-like symptoms. Healthy people typically recover in a week or two, but RSV can be serious for infants or older adults. RSV is most common in the fall and winter months.

Symptoms

People with RSV usually show symptoms 4 to 6 days after getting infected. Common RSV symptoms include:

Pertussis (Whooping Cough)

Pertussis is a respiratory illness commonly known as whooping cough and caused by the bacteria Bordetella pertussis. Whooping cough can be very serious, especially in infants.

About

Whooping cough is a very contagious disease only found in humans and spreads easily from person-to-person. When a person with whooping cough sneezes or coughs, they release small particles with the bacteria in them. Other people can then breathe in the bacteria.

U.S. CDC: First Reported Outbreak Caused by Marburg Virus in Ethiopia

Please review this information and clinical guidance from the U.S. CDC on the Marburg outbreak caused by Marburg virus (Marburg marburgvirus) in Ethiopia’s South Ethiopia and Sidama regions. As of December 15, 2025, there are no known cases of Marburg in Maine or the United States and the risk to people in the United States is low. 

Any patients in Maine with suspected Marburg must be reported immediately to the Maine CDC by phone at 1-800-821-5821. 

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