ST. LOUIS — State health officials have issued a warning after a person with measles visited the St. Louis Aquarium on April 30th. The infected individual, an adult from out of state, was at the aquarium between 1 and 6 p.m. and also dined at a local restaurant, though details about the restaurant remain limited.

“Because measles is highly contagious, people who were at the aquarium on the afternoon of April 30th and who are unvaccinated or immunocompromised should consider getting treatment,” state health officials advised.

Measles typically begins with symptoms such as fever, cough, runny nose, and red, watery eyes, followed by red spots that can spread rapidly across the body. The usual time interval for treatment to be effective is six days from exposure, and anyone exposed should watch for symptoms for 21 days.

There has been one other measles case in Missouri this year, reported in Taney County last month, and four cases in Illinois. Nationally, there have been 935 measles cases this year, including many in Texas.

All facts from this article were gathered by KTVI journalists. This article was converted into this format with assistance from artificial intelligence.  It has been edited and approved by KTVI staff.