MARBLEHEAD — The Marblehead Board of Health is urging residents to review their vaccination histories following two recent measles cases reported in Massachusetts and continued seasonal respiratory illness activity across the region.
During a recent update, Dr. Amanda Ritvo said the cases, though limited, reflect broader outbreaks occurring nationally and internationally.
“One individual was exposed out of state and remained out of state during the infectious period,” Ritvo said. “The second case involved an unvaccinated Greater Boston resident who had recently traveled internationally.” State public health officials are currently managing potential exposures.
Ritvo said the cases serve as an important reminder of the role vaccination plays in preventing the spread of disease.
Health officials recommend that people born before 1957 be generally presumed immune to measles due to prior exposure. Individuals born in 1957 or later who lack documented immunity should receive at least one dose of the measles, mumps, and rubella (MMR) vaccine. Two doses are recommended for higher-risk groups, including health care workers, college students, and international travelers.
Children typically receive their first MMR dose between 12 and 15 months of age and a second dose between ages 4 and 6.
Ritvo noted that vaccination protects both individuals and the broader community. Unvaccinated people who are exposed to measles may be required to stay home from work, school, daycare, or other public activities during the incubation period to prevent further spread.
In addition to measles, Ritvo provided an overview of current respiratory illness trends.
Seasonal influenza activity remains elevated nationally, though cases of influenza A are declining while influenza B is increasing. Influenza A still accounts for about 90% of cases overall.
In Essex County, health officials report moderate COVID-19 activity, low influenza levels, and very high activity of respiratory syncytial virus (RSV), particularly among children younger than 4.
RSV is a leading cause of hospitalization among infants, Ritvo said. New prevention tools are now available, including a monoclonal antibody treatment recommended for infants and young children entering their first or second RSV season, typically between October and March.
Another option is an RSV vaccine from Pfizer that can be administered during pregnancy between 32 and 36 weeks to help protect newborns after birth. Only one of the two prevention methods is generally recommended.
Current data suggest these interventions can reduce RSV-related hospitalizations among infants by about 70% to 80%.
Health Director Andrew Petty also encouraged residents to confirm their vaccination records before a potential exposure occurs. Many people can review their immunization history through online medical portals, while others may need to contact their primary care providers.
“It’s good to understand your vaccination history so you’re not in a panic wondering whether you’ve had a measles vaccine,” he said.
Health officials said they will continue monitoring disease trends and provide updates if conditions change or new guidance is issued by the Massachusetts Department of Public Health.
