Letter A

Angiostrongyliasis

Infection with the parasitic nematode (roundworm) Angiostrongylus.

The two species that infect humans are A.

Cantonensis and A.

Costaricensis.

Cantonensis, the rat lungworm, is the most common cause of human eosinophilic meningitis (meningitis with eosinophils in the cerebrospinal fluid).

The meningitis is due to the presence of the rat lungworm larvae in the brain and the patient's local reactions to them.

Costaricensis causes abdominal, or intestinal, angiostrongyliasis which mimics appendicitis, with eosinophilia (an increase of eosinophils in blood).

There is no effective treatment for A.

Cantonensis or A.

Costaricensis.

Medical disclaimer

The information on this page is for educational and informational purposes only and does not constitute medical advice in any way.

It does not replace the advice of a physician, pharmacist or other healthcare professional.
It does not represent a prescription of drugs, diagnostic exams or therapies.
In case of symptoms, doubts or concerns about your health, always consult a qualified physician.

In case of emergency call 911 (US) or 112 (EU).