Lissachatina fulica (Bowdich, 1822) is a known pest in South America (see my old blogposts, tagged Achatina) and has spread over Brazil during the last decades. Ohlweiler et al. (2010) have studied this species in the State of Sao Paulo. This parasitological study explores the number of infected populations. Compared to three years ago (Thiengo et al., 2007), the number of counties within the State of Sao Paulo where L. fulica is recorded has grown from 69 to 105. Infected populations were found in six cities. The recommendation is made of putting an epidemiological monitoring system as prevention for medical and veterinary risks.
This study highlights again the potential risk of this snail as host for nematodes, in this case in a densely populated and economic important area of Brazil.
Ohlweiler, F.P., Guimaraes, M.C. de Almeida, Takahasi, F.Y. & Eduardo, J.M., 2010. Current distribution of Achatina fulica, in the State of Sao Paulo including records of Aelurostrongylus abstrusus (Nematoda) larvae infestation. – Revista do Instituto de Medicina Tropical de Sao Paulo 52 (4): 211-214.
Thiengo, S.C., Faraco, F.A., Salgado, N.C., Cowie, R.H. & Fernandez, M.A., 2007. Rapid spread of an invasive snail in South America: the giant African snail, Achatina fulica, in Brazil. – Biological Invasions 9: 693-702.