Roswell-area families are being urged to verify their measles vaccination status after the Georgia Department of Public Health confirmed a case in an unvaccinated metro Atlanta resident with no known exposure source, raising the possibility of undetected community spread within Fulton County.
The Fulton County Board of Health advisory, published Tuesday, Aug. 18, said the patient has no known travel history or contact with another infected person. DPH is tracing contacts from the individual's infectious period but has not disclosed a specific location or timeline of potential public exposures.
No exposure sites have been named.
This is the seventh confirmed measles case in Georgia in 2026. The state recorded 10 cases in all of 2025.
What Roswell residents should know
The case matters locally because Roswell sits in Fulton County, the same jurisdiction managing the public health response. The virus spreads through the air when an infected person coughs or sneezes and can remain in the air and on surfaces for up to two hours after an infected person leaves a room.
Symptoms appear 7 to 14 days after exposure: high fever, cough, runny nose and watery eyes, followed by a rash of tiny red spots that starts at the head and spreads downward.
DPH advised that anyone experiencing those symptoms should call a healthcare provider before visiting any medical facility. The advisory, authored by Tiffany Daggett, put the warning in bold: do not show up at a doctor's office, hospital or clinic without calling first.
Vaccination is the main defense
More than 95% of people who receive a single MMR dose develop immunity, according to DPH. A second dose raises protection to about 98%. The CDC recommends children get their first dose between 12 and 15 months and a second between ages 4 and 6.
Nationally, the picture is grimmer. As of late July, the U.S. had logged more than 2,318 measles cases in 2026, surpassing 2025's full-year total of 2,289 and marking the highest annual count since 1991, according to CIDRAP reporting on CDC data. About 93% of those cases involve unvaccinated individuals or people with unknown vaccination status.
"Halfway into 2026, the U.S. is experiencing the worst year for measles since 1991," Dr. Andrew Racine, president of the American Academy of Pediatrics, said in July when the CDC confirmed the national total had surpassed the prior year's count.
Kindergarten MMR vaccination rates fell to 92.5% in the 2024-25 school year, down from 95.2% in 2019-20, according to ABC News reporting on CDC figures. Experts consider 95% the threshold needed to prevent outbreaks.
What to do now
Roswell families unsure of their vaccination status can check with their pediatrician or healthcare provider. Adults can request a blood test to confirm immunity.
The Fulton County Board of Health, listed on its website at 770-520-7500, serves nearly one million county residents and is coordinating the local response.
