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What Is Eosinophilic Meningitis? This is Every little thing About The Uncommon An infection That Spreads From Rodents

A parasitic worm that may have an effect on the human mind and result in coma and even dying is spreading within the Southeastern United States.

A brand new research, led by the Centers for Disease Control and Prevention (CDC)recognized the presence of Angiostrongylus cantonensis, generally generally known as rat lungworm, in lifeless wild brown rats at a zoo in Atlanta from 2019 to 2022. The scientists recognized the parasite in 4 out of seven circumstances. They could not affirm the its presence within the remaining three circumstances resulting from inadequate pattern high quality and DNA degeneration.

The findings increase issues about potential threats to people and different animals, each home and captive ones. Nonetheless, no human circumstances have been reported so removed from the area of late.

In people, the rat lungworm causes a uncommon type of meningitis, generally known as eosinophilic meningitis (EM) or eosinophilic meningoencephalitis. Parasitic meningitis is far much less frequent than viral and bacterial meningitis.

This is what you’ll want to know in regards to the illness:


Eosinophilic meningitis is brought about primarily by three forms of parasites – Angiostrongylus cantonensis, Baylisascaris procyonis, and Gnathostoma spinigerum.

Usually, these parasites infect animals and never people. The grownup type of A.cantonensis parasite is primarily present in rodents, whereas its larvae are present in snails and slugs. Folks can contract an A.cantonensis infection by consuming uncooked or raw snails and slugs or by contaminated meals.

Parasitic meningitis is usually not transmissible from one particular person to a different.

Indicators and signs

Folks contaminated with the parasite can have signs like complications, stiff neck, nausea, vomiting, photophobia (sensitivity to gentle) and altered psychological standing (confusion).

They could additionally expertise tingling or ache of their pores and skin and have a low-grade fever. If left untreated, the an infection can result in extreme issues similar to lack of coordination and muscle management, weak point, paralysis, coma, everlasting incapacity and even dying.


Based on the CDCit may be identified by testing the blood or cerebrospinal fluid samples. Nonetheless, finding these parasites in cerebrospinal fluid or different physique tissues may be difficult.

Along with the laboratory checks, an individual’s journey historical past or historical past of publicity, scientific examination and extra medical checks like mind scans will help in diagnosing the situation.


There isn’t a particular therapy obtainable for eosinophilic meningitis. Docs might prescribe ache treatment for complications and to scale back the physique’s response to the parasite.

Though the Angiostrongylus cantonensis parasite is usually present in components of Asia and the Pacific Islands, circumstances have been recognized in the USA as effectively. Based on the CDC, the parasite seemingly existed in Georgia earlier than 2019, because it was beforehand detected in Florida and Alabama. Between 2011 and 2016, six suspected human circumstances have been reported in Texas, Tennessee and Alabama.

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