CORRECTION: The first article in the March 20 Weekly Update was sent without its full content. We apologize for the oversight. The corrected version of the article, "Respiratory Syncytial Virus (RSV) Circulation and Extending the Availability of RSV Monoclonal Antibody Product Through April" is included below. 

The Maine CDC is recommending clinicians maintain high index of suspicion for RSV in patients presenting with clinically compatible illness. Maine health care facilities are advised to continue to make RSV monoclonal antibody products available to patients and eligible infants through April 30. This represents an extension beyond the typical end date of March 30, reflecting the prolonged circulation of RSV this year. 

Respiratory Syncytial Virus (RSV) activity in Maine is peaking later and lasting longer than in recent years. RSV is the leading cause of infant hospitalization in the U.S. For updated information on RSV circulation, see the Maine CDC Respiratory Virus Dashboard.

A Public Health Advisory Notice was issued on March 18. The full notice can be viewed here.

Adolescent Immunization Action Week is observed April 6–10 this year. Parents, healthcare providers and adolescents are urged to start conversations about the importance of adolescent vaccinations. Visit Unity’s AIAW campaign page for social media-ready materials.

Unity’s Partner Toolkit includes graphics, social media templates, sample newsletters, posters, and flyers that are all ready to use. Resources can also be customized and co-branded to meet your needs. 

The FDA has launched the Adverse Event Monitoring System (AEMS), a new centralized platform designed to display reports of adverse events across FDA-regulated products, including vaccines, drugs, and biologics. Over time, AEMS is expected to replace the current VAERS reporting system, though VAERS will remain active during the transition. The new system aims to provide timelier (“in real time”) access to reported data. 

For more information:

• FDA: FDA Launches New Adverse Event Look-Up Tool (3/11/26)
• FDA: FDA Adverse Event Reporting System (FAERS) Public Dashboard: Frequently Asked Questions
• CIDRAP: FDA Announces AEMS, New Adverse-Event Database to Replace VAERS (3/12/26)

Maintaining proper vaccine storage and handling plays a critical role in the viability of vaccines, reducing waste and maintaining adequate supply to patients. The CDC's Storage and Handling Toolkit offers best practice resources on managing and storing vaccine inventory, using and maintaining storage unit and temperature monitoring equipment, preparing for emergency situations, and training staff.

CDC's Vaccine Storage and Handling Toolkit

Vaccine Storage and Handling Resources | Vaccines & Immunizations | CDC

If you have any questions, please contact the Maine Immunization Program at: 
Main Line: (207) 287-3746 
ImmPact Helpdesk: (207) 287-3006  / Support/Education: (207) 287-9972

www.ImmunizeME.org