Recently, a case of brain eating insect has been confirmed in Hillsborough County, Florida. The local health department issued a warning, calling on people to pay attention to protection.
it’s a very rare disease, but it’s almost fatal. According to the records of the Centers for Disease Control and prevention of the United States, 145 cases of brain eating insects have occurred in the United States from 1962 to 2018, with only four survivors, and the mortality rate is more than 97% .
what’s more, the brain eating insect is not a “specialty” of the United States. There are also nearly 10 cases reported in China, and the infected patients have never survived [2-7]
lakes, rivers, hot springs, silt and other fresh water, domestic and industrial sewage, sea water near the coast, hospitals and residents’ water supply systems may all have their presence.
when swimming, washing face and washing hair in polluted water, brain eating insects may enter the brain through the nose, and then rapidly propagate and spread, resulting in amoebic meningoencephalitis and eventually death.
their scientific name is “amoeba flexneri”, which is very small, with an average of 22 × 7 microns. There are three forms of cysts, flagellates and trophozoites.
the trophozoites of encephalus are very tenacious and grow fastest in the environment of pH 6.0 ~ 6.5 and temperature of 35 ℃ ~ 37 ℃;
on August 14, the patient participated in a water splashing game in a scenic spot in Shenzhen. After returning home, less than a week later, he developed fever, cough, headache and other symptoms, but did not care.
1. When you go to lakes, ponds, rivers, fountains, hot springs and other places, you should use these water to wash your face, play or swim, and try to avoid water from your nose.
3. No swimming is recommended, especially in fresh water. Swimming is best to regularly disinfect the swimming pool or water park, but also wear goggles and nose clip, to avoid dirty water into the nose.
 Fang Jun, Cheng Yunfang. Primary amebic meningoencephalitis with a clinicopathological report [J]. Acta Fudan, 1984.
 Duan Weihong, Zheng Zhifeng. A case report of primary amoebic meningoencephalitis [J]. Journal of clinical neurology: 93-93.
 Cai Haodong. Amoeba furnii and primary amoebic meningoencephalitis [J]. Chinese Journal of experimental and clinical infectious diseases, 2007, 1:252-254.08/16/2020