Rat lungworm (Angiostrongylus cantonensis) active larval emergence from deceased bubble pond snails (Bullastra lessoni) into water
| Title: | Rat lungworm (Angiostrongylus cantonensis) active larval emergence from deceased bubble pond snails (Bullastra lessoni) into water |
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| Authors: | Phoebe Rivory, Rogan Lee, Jan Šlapeta |
| Source: | Parasitology, Vol 150, Pp 700-704 (2023) |
| Publisher Information: | Cambridge University Press, 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Biochemistry LCC:Infectious and parasitic diseases LCC:Microbiology |
| Subject Terms: | angiostrongyliasis, Angiostrongylus cantonensis, aquatic snail, Bullastra lessoni, experimental infection, intermediate host, rat lungworm, transmission pathways, Biochemistry, QD415-436, Infectious and parasitic diseases, RC109-216, Microbiology, QR1-502 |
| More Details: | Angiostrongylus cantonensis (the rat lungworm) is a zoonotic parasite of non-permissive accidental (dogs, humans, horses, marsupials, birds) hosts. The 3rd stage larvae (L3s) in the intermediate host (molluscs) act as the source of infection for accidental hosts through ingestion. Larvae can spontaneously emerge from dead gastropods (slugs and snails) in water, which are experimentally infective to rats. We sought to identify the time when infective A. cantonensis larvae can autonomously leave dead experimentally infected Bullastra lessoni snails. The proportion of A. cantonensis larvae that emerge from crushed and submerged B. lessoni is higher in snails 62 days post-infection (DPI) (30.3%). The total larval burden of snails increases at 91 DPI, indicating that emerged larvae subsequently get recycled by the population. There appears to be a window of opportunity between 1 and 3 months for infective larvae to autonomously escape dead snails. From a human and veterinary medicine viewpoint, the mode of infection needs to be considered; whether that be through ingestion of an infected gastropod, or via drinking water contaminated with escaped larvae. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 00311820 0031-1820 1469-8161 |
| Relation: | https://www.cambridge.org/core/product/identifier/S0031182023000434/type/journal_article; https://doaj.org/toc/0031-1820; https://doaj.org/toc/1469-8161 |
| DOI: | 10.1017/S0031182023000434 |
| Access URL: | https://doaj.org/article/624fd89768214dda86914a8f8e970d16 |
| Accession Number: | edsdoj.624fd89768214dda86914a8f8e970d16 |
| Database: | Directory of Open Access Journals |
| ISSN: | 00311820 14698161 |
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| DOI: | 10.1017/S0031182023000434 |
| Published in: | Parasitology |
| Language: | English |