- Health officials confirm measles case in Maryland resident who visited multiple DC-area locations while contagious.
- Exposure sites include Washington Dulles International Airport and Johns Hopkins Howard County Medical Center.
- Officials urge vigilance as US measles cases rise, with 378 confirmed across 18 jurisdictions.
Potential Measles Exposures in DC Area
DC Health officials are investigating potential measles exposures after confirming a case in a Maryland resident who visited multiple locations in the region while contagious. The case is not linked to the ongoing outbreak in Texas and New Mexico.
Key exposure sites include Washington Dulles International Airport's international arrivals area on March 5 between 4:00 pm and 9:00 pm, and Johns Hopkins Howard County Medical Center's pediatric emergency department on March 7 from 3:30 pm to 7:30 pm. Health officials advise anyone present during these windows to monitor for symptoms until March 26.
Rising Measles Cases Nationwide
The incident occurs amid a broader increase in US measles cases, with 378 confirmed across 18 jurisdictions as of March 20. Three outbreaks account for 90% of cases, with 95% occurring among unvaccinated individuals or those with unknown vaccination status.
Public health officials emphasize the MMR vaccine's effectiveness - two doses provide 97% protection. However, vaccination rates have declined globally, with nearly 40 million children missing a measles vaccine dose in 2021.
Economic and Public Health Impact
Measles outbreaks carry significant economic consequences. A 2019 Washington outbreak with 72 cases cost an estimated $3.4 million, averaging $47,479 per case when accounting for public health response, medical expenses, and productivity losses.
The Pan American Health Organization has issued an epidemiological alert as cases rise across the Americas, with 268 confirmed cases including one death in Argentina, Canada, Mexico, and the US as of February 21.
Health officials continue urging vaccination as the primary prevention method while working to contain potential exposures. The situation highlights ongoing challenges in maintaining public health protections amid varying vaccination rates.