According to a military doctor, the rarity of this disease is due to the fact that it occurs in only one way: when contaminated water enters through the nose, usually in open natural reservoirs. At the same time, the water must remain in the nose long enough for the amoeba to penetrate the olfactory nerve. Naegleria fowleri then moves upward, penetrating the brain. Sopha explained that person-to-person transmission is completely ruled out, adding that the disease has an incubation period of three to seven days. Initial symptoms may include headache, fever, nausea, or vomiting, and later symptoms may cause severe headaches, severe vomiting, and stiff neck (difficulty bending the head).
Recall that on December 26, South Korea reported the first death in its history from infection with Naegleria fowleri (“Negleria Fowler”), the Korea Disease Control and Prevention Agency (KDCA) confirmed that a Korean citizen at the age of 50 years old died after returning from Thailand. The man returned to South Korea on December 10 after a four-month stay in the country. He was hospitalized the next day and died on December 21.
As of 2018, 381 cases of Naegleria fowleri infection have been reported worldwide, including in India, Thailand, the United States, China, and Japan. In the United States alone, 154 cases of infection were reported from 1962 to 2021. According to the US Centers for Disease Control and Prevention (CDC), only four people survived and the death rate exceeded 97 percent. hundred.