A Roscommon GP is urging anyone with symptoms of bacterial meningitis to contact their doctor for medical treatment.
Three young people have died from meningococcal meningitis or septicemia since late September.
The infection inflames the membranes around the brain and spine with symptoms including a fever, headache, stiffness, sensitivity to light and rash.
Dr. Madeleine Ní Dhálaigh says while it's contagious and spreads rapidly, there's good treatment in this country.
Speaking on the Joe Finnegan Show, the Castlerea based GP says the HSE and doctors are on high alert due to the recent cases.
"When a bug like this attacks a young person in their late teens and 20's, this bug in particular, once it gets into the bloodstream can get the person very ill quite rapidly. With these things, if your gut is telling you that this is more than a common cold, it is important to seek advice and GP's around the country are on high alert for this".
The Department of Public Health Area F (HSE West and North West) is investigating a single case of confirmed meningococcal disease in Galway.
Public Health Area F (HSE West and North West) was notified of the case in late September with concerns regarding a young adult who subsequently died.
Close contacts identified by Public Health have been contacted and offered treatment in accordance with national guidance.
The HSE say person-to-person spread of meningococcal disease is very unusual, especially with others who are not a household or physically close personal contact.