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Rat lungworm infection is caused by a metastrongylid nematode, Angiostrongylus cantonensis. The parasite was first recorded in the pulmonary arteries and heart of domesticated rats in China in 1935: its medical importance, however, was established 10 years later when Nomura and Lin recovered A. cantonensis larvae from the cerebro-spinal fluid of a human teenager with meningitis in Taiwan in 1945.1 Since then, the parasite has become recognised as a major cause of human meningoencephalitis worldwide.2,3 |
