title: [Investigation on snails Achatina fulica and Pomacea canaliculata infected with Angiostrongylus cantonensis in Panyu region of Guangzhou City].
abstract: OBJECTIVE
  To understand the natural infection status of Angiostrongylus cantonensis in snails Achatina fulica and Pomacea canaliculata from Panyu region of Guangzhou City.
  
  
  METHODS
  The snails Achatina fulica and Pomacea canaliculata captured from the field were digested with the artificial stomach fluid. The third-stage larvae of A. cantonensis were examined and counted under a microscope. The collected third-stage larvae were used to infect SD rats.
  
  
  RESULTS
  A total of 367 Achatina fulica and 357 Pomacea canaliculata were examined. The infection rate of A. cantonensis in Achatina fulica was 22.62%, with a mean intensity of 57.00 larvae per positive snail. The infection rate of A. cantonensis in Pomacea canaliculata was 3.08%, with a mean intensity of 1.64 larvae per positive snail. The infection rates of A. cantonensis in Achatina fulica from Dagang, Shiqi, Hualong, and Lanhe towns and Nansha District, were 13.33%, 15.00%, 20.93%, 73.68% and 8.41%, respectively. Those in Pomacea canaliculata were 5.88%, 2.88%, 1.89%, 0% and 3.96%, respectively.
  
  
  CONCLUSIONS
  A. cantonensis infection exists in Achatina fulica and Pomacea canaliculata from Panyu region of Guangzhou City, and the infection in Achatina fulica is more serious than that in Pomacea canaliculata. The infection rates of the snails among five sites are different.
authors.affiliation: The Third Clinical Medical College, Guangzhou Medical College, Guangzhou 510182, China.
authors.forename: Chu-Xuan
authors.initials: CX
authors.lastname: Chen
authors.forename: Hui-Fang
authors.initials: HF
authors.lastname: He
authors.forename: Zhu
authors.initials: Z
authors.lastname: Yin
authors.forename: Jin-Huan
authors.initials: JH
authors.lastname: Zhou
authors.forename: Shi-Qun
authors.initials: SQ
authors.lastname: Li
authors.forename: Fang-Hui
authors.initials: FH
authors.lastname: Li
authors.forename: Jiong-Min
authors.initials: JM
authors.lastname: Chen
authors.forename: Wei-Jin
authors.initials: WJ
authors.lastname: Zhu
authors.forename: Xiu-Ming
authors.initials: XM
authors.lastname: Zhong
authors.forename: Kai-Ying
authors.initials: KY
authors.lastname: Yang
authors.forename: Gui-Ping
authors.initials: GP
authors.lastname: Liu
authors.forename: Xun
authors.initials: X
authors.lastname: Jia
authors.forename: Wan-Tong
authors.initials: WT
authors.lastname: Chen
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Li
authors.forename: Yu-Chang
authors.initials: YC
authors.lastname: Chen
authors.forename: Xiao-Dong
authors.initials: XD
authors.lastname: Luo
authors.forename: Dai-Xiong
authors.initials: DX
authors.lastname: Chen
authors.forename: Hao-Xian
authors.initials: HX
authors.lastname: Shen
mesh_terms: D017185:Angiostrongylus cantonensis / Q000302:isolation & purification*; D000818:Animals; D002681:China / Q000453:epidemiology; D051381:Rats; D017207:Rats, Sprague-Dawley; D012908:Snails / Q000469:parasitology*; D017206:Strongylida Infections / Q000453:epidemiology / Q000469:parasitology*