Angiostrongylus cantonensis was first discovered in rats in Guangzhou (Canton), China in 1935 (Chen 1935). A. cantonensis is a zoonotic pathogen, which causes human angiostrongylosis with the main clinical manifestation of eosinophilic meningitis. The first case of human angiostrongylosis was reported in Taiwan in 1945. Subsequently several outbreaks of this disease occurred in Pacific Islands (Rosen et al. 1961; Kliks and Palumbo 1992). In the past decade, a number of outbreaks of human angiostrongylosis have emerged in some endemic regions, especially in China (Wang et al. 2008). Additionally, increasing numbers of travellers are diagnosed with eosinophilic meningitis caused by A. cantonensis after returning from endemic regions (Lo et al. 2001; Slom et al. 2002; Bartschi et al. 2004; Podwall et al. 2004; Kumar et al. 2005; Leone et al. 2007; Ali et al. 2008). The parasite continues to threaten human beings, especially people living in the Pacific Islands and Asia. So far, at least 2,825 cases have been recorded; of them, 1,337 were reported in Thailand, 769 in China (Hong Kong and Taiwan), 256 in Tahiti, 116 in the USA (Hawaii and Samoa) and 114 cases in Cuba (Wang et al. 2008).
Cryptic lineage diversity, body size divergence, and sympatry in a species complex of Australian lizards (Gehyra)