Angiostrongylus cantonensis Lungworms in Definitive and Intermediate Hosts, Madagascar, 2024.

We assessed the prevalence of the rat lungworm, Angiostrongylus cantonensis, in rats and snails in Toamasina, Madagascar, using molecular techniques. Although no human cases of neuroangiostrongyliasis have been reported in Madagascar, the pathogen's presence in definitive hosts (2.5%, 2/78) and intermediate hosts (26.9%, 35/130) reveals active circulation and potential zoonotic risk.