Kawasaki disease in children: Symptoms, risks, and early treatment

A mysterious illness first discovered in the 1960s still puzzles doctors today. Could infections like COVID-19 trigger its sudden onset in vulnerable kids?

, and Administrator

2026 May 4 . 8:02 AM

1 min read

The image shows a wall with a sign on it that reads "Kawasaki 732" and a glass window on the right... — The image shows a wall with a sign on it that reads "Kawasaki 732" and a glass window on the right side. The sign is likely indicating that the Kawasaki prize was awarded in 2019.

Kawasaki disease in children: Symptoms, risks, and early treatment

Doctors first identified Kawasaki disease in the 1960s, thanks to the work of Japanese paediatrician Dr. Tomisaku Kawasaki. The condition primarily affects children under five, causing severe inflammation throughout the body. Its exact origins remain unclear, though researchers believe both genes and environmental triggers contribute to its development. The illness often appears with a high fever lasting several days. Children may also develop red, irritated eyes, a swollen tongue, and a widespread rash. Swollen lymph nodes in the neck, along with peeling skin on the hands and feet, are common signs.

Early treatment is critical. Without prompt care, the disease can lead to dangerous inflammation in blood vessels, particularly the coronary arteries. Doctors aim to reduce fever and inflammation quickly to prevent long-term heart damage. During the early stages of the COVID-19 pandemic, some countries reported a rise in cases resembling Kawasaki disease. This led to concerns about a possible link between the virus and the condition. Researchers noted that genetically predisposed children might develop the illness after exposure to infections like SARS-CoV-2. The disease appears more frequently in boys and is particularly common in Japan. In rare cases, a similar but more severe condition—multisystem inflammatory syndrome in children (MIS-C)—can emerge. Unlike Kawasaki disease, MIS-C may also affect the gut, brain, lungs, and other organs.

Kawasaki disease remains a serious but treatable condition in young children. Recognising symptoms early allows for faster medical intervention, reducing the risk of complications. Ongoing research continues to explore its connections to infections and genetic factors.