Enzootic Angiostrongyliasis in Shenzhen, China

Zhang, Renli; Chen, Mu-Xin; ShiTong, Gao; Yang, Geng; Huang, Dana; Liu, Jianping; Wu, Yuan-Liang; Zhu, Xingquan

doi:10.3201/eid1412.080695

Cited by 27 publications

(29 citation statements)

References 9 publications

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“…13,14 The infection rate of A. fulica was lower than Maoming (38.41%), Zhanjiang (31.94%), Jiangmen (30.52%), and Yunfu (18.78%), comparable to Shenzhen (10.3%), Zhaoqing (12.55%), and higher than Yangjiang (7.71%) and Qingyuan (2.00%). 7,8,11 On the other hand, the infection rate of P. canaliculata was comparable to Yunfu (2.07%) and Yangjiang (0.86%), and lower than Shenzhen (20.7%), Maoming (20.14%), and Jiangmen (5.14%). 7,8,11 Reasons for such a disparity may lie in differences in the natural conditions of each region and the snails' composition, which in turn may affect the snails' tolerance in different places and sample number.…”

Section: Discussionmentioning

confidence: 95%

“…7,8,11 On the other hand, the infection rate of P. canaliculata was comparable to Yunfu (2.07%) and Yangjiang (0.86%), and lower than Shenzhen (20.7%), Maoming (20.14%), and Jiangmen (5.14%). 7,8,11 Reasons for such a disparity may lie in differences in the natural conditions of each region and the snails' composition, which in turn may affect the snails' tolerance in different places and sample number.…”

Section: Discussionmentioning

confidence: 95%

“…7,8,11,12 The infection profile of rats in Guangzhou was reported by a previous survey 7 ; however, there has not been thorough data about the infection profiles of snails and residents in Guangzhou. We conducted a survey, which included seroprevalence and analysis of intermediate and definitive hosts, to ascertain the status of A. cantonensis infection in Guangzhou.…”

Section: Discussionmentioning

confidence: 99%

“…7,8,11,12 Only two species of rats showed signs of infection, i.e., R. norvegicus and R. flavipectus with similar infection rates. However, R. norvegicus was found in a higher number and broader distribution in Guangzhou.…”

Section: Discussionmentioning

confidence: 99%

“…[7][8][9][10] This combined with the existence of positive definitive hosts, has implicated regions of some provinces such as Guangdong, Fujian, Hainan, and Zhejiang as the natural foci of A. cantonensis. Residents living in these areas face the constant risk of infection.…”

Section: Introductionmentioning

confidence: 99%

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Enzootic Angiostrongyliasis in Guangzhou, China, 2008–2010

Xiao¹,

ZhenYu²,

He³

et al. 2012

The American Society of Tropical Medicine and Hygiene

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Abstract. This study was conducted to gain an understanding of the Angiostrongylus cantonensis infection status of rodent definitive host, snail intermediate host, and local residents in Guangzhou, China. A total of 430 rats were captured and 23 rats, from two species, were infected, with an average infection rate of 5.35%. A total of 795 Achatina fulica snails and 734 Pomacea canaliculata snails were collected. The average infection rates of these two species were 13.96% (111 of 795) and 1.50% (11 of 734), respectively. As for the seroprevalence of different occupations, the rate among the "general group" was significantly lower than the "occupational group." From this survey, Guangzhou is implicated to be the natural focus of Angiostrongylus cantonensis. Rattus norvegicus and Achatina fulica play important roles in spreading this nematode in Guangzhou. Residents who live in Guangzhou, especially those working in certain industries such as agriculture, food-making, and aquaculture, face a higher risk of infection.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enzootic Angiostrongyliasis in Guangzhou, China, 2008–2010

Xiao¹,

ZhenYu²,

He³

et al. 2012

The American Society of Tropical Medicine and Hygiene

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Human Angiostrongylus cantonensis: an update

Wang

Wei

et al. 2011

Eur J Clin Microbiol Infect Dis

187

146

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Angiostrongylus cantonensis was first discovered in 1935 and has become an important emerging pathogen causing human angiostrongyliasis. Major outbreaks of human angiostrongyliasis have been reported in endemic regions. Thousands of cases of human angiostrongyliasis have been documented worldwide. A. cantonensis has spread from its traditional endemic regions of the Pacific islands and Southeast Asia to the American continent including the USA, Caribbean islands and Brazil. Humans acquire A. cantonensis by consumption of raw or undercooked intermediate snail hosts or paratenic hosts. The main clinical manifestations of human angiostrongyliasis are eosinophilic meningitis and ocular angiostrongyliasis. The treatment of this disease includes supportive treatment, corticosteroid therapy, and combined therapy with corticosteroids and anthelminthics. The most effective method for prevention is to persuade people not to eat raw or undercooked intermediate and paratenic hosts.

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