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Tytuł pozycji:

Surveillance-based evidence: elimination of schistosomiasis as a public health problem in the Peoples' Republic of China.

Tytuł:
Surveillance-based evidence: elimination of schistosomiasis as a public health problem in the Peoples' Republic of China.
Autorzy:
Xu J; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Li SZ; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Zhang LJ; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Bergquist R; Geospatial Health, Ingerod 407, S-45494, Brastad, Sweden.
Dang H; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Wang Q; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Lv S; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China.
Wang TP; Anhui Provincial Institute of Schistosomiasis Control, Hefei, Anhui Province, 230061, People's Republic of China.
Lin DD; Jiangxi Provincial Institute of Parasitic Disease, Nanchang, Jiangxi Province, 330006, People's Republic of China.
Liu JB; Hubei Provincial Institute of Schistosomiasis Control, Hubei Center for Disease Control, Wuhan, Hubei Province, 430079, People's Republic of China.
Ren GH; Hunan Provincial Institute of Schistosomiasis Control, Yueyang, Hunan Province, 414000, People's Republic of China.
Yang K; Jiangsu Provincial Institute of Schistosomiasis Control, Wuxi, Jiangsu Province, 214064, People's Republic of China.
Liu Y; Sichuan Center for Disease Control, Chengdu, Sichuan Province, 610041, People's Republic of China.
Dong Y; Yunnan Provincial Institute of Endemic Diseases Control and Prevention, Dali, Yunnan Province, 671000, People's Republic of China.
Zhang SQ; Anhui Provincial Institute of Schistosomiasis Control, Hefei, Anhui Province, 230061, People's Republic of China.
Zhou XN; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Tropical Diseases, Chinese Center for Tropical Disease Research, Shanghai, 200025, People's Republic of China. .
Źródło:
Infectious diseases of poverty [Infect Dis Poverty] 2020 Jun 06; Vol. 9 (1), pp. 63. Date of Electronic Publication: 2020 Jun 06.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: London : BioMed Central, 2012-
MeSH Terms:
Animals, Domestic*
Schistosomiasis*/epidemiology
Schistosomiasis*/prevention & control
Schistosomiasis*/transmission
Schistosomiasis*/veterinary
Sentinel Surveillance*
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Animals ; Child ; China/epidemiology ; Female ; Humans ; Male ; Middle Aged ; Public Health ; Snails/parasitology ; Young Adult
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Grant Information:
30590373 the National Natural Science Foundation of China (CN); 2012ZX10004-220 the National Special Science and Technology Project for Major Infectious Diseases of China; 2016YFC1202000 the National Special Science and Technology Project for Major Infectious Diseases of China
Contributed Indexing:
Keywords: China; Elimination; Infection rate; Schistosomiasis; Surveillance
Entry Date(s):
Date Created: 20200608 Date Completed: 20201006 Latest Revision: 20231111
Update Code:
20240104
PubMed Central ID:
PMC7275476
DOI:
10.1186/s40249-020-00676-5
PMID:
32505216
Czasopismo naukowe
Background: A steady progress on schistosomiasis control in the Peoples' Republic of China (P.R. China) was achieved and broadened into the twelve-year medium and long term national plan (MLNP) which marled the implementation of an integrated control strategy across all endemic areas in P.R. China in 2004. To understand the endemic trends of schistosomiasis to assess the effectiveness of an integrated strategy, we conducted an analysis of schistosomiasis surveillance data spanned from 2005 to 2015.
Methods: The schistosomiasis sentinel surveillance data from sentinel sites were collected and analyzed from 2005 to 2015. In these sentinel sites, residents aged 6 years or above were screened annually by indirect hemagglutination assay (IHA), while only antibody positives were followed by stool examination either Kato-katz method (KK) and/or hatching technique (HT). Domestic animals raised in sentinel sites were examined by HT for confirming the infection of schistosomes. Snail investigation was conducted each year through systematic sampling method combined with environmental sampling method. The snails collected from field were tested by microscopic dissection method. The infection rates of schistosomes in residents, domestic animals and snails, as well as the indicators reflecting the snails' distribution were calculated and analyzed. ANOVA analysis was used to examine the changes of the number of eggs per gram feces in population and Chi-square test was used to examine any change in proportions among groups.
Results: A total of 148 902 residents from sentinel sites attended this study and 631 676 blood samples were examined by IHA test during the 11 covered years. The annual average antibody positive rates presented a significant decrease trends, from 17.48% (95% CI: 17.20-17.75%) in 2005 to 5.93% (95% CI: 5.71-6.15%) (χ 2  = 8890.47, P < 0.001) in 2015. During 2005-2015, the average infection rate of schistosomes in residents declined from 2.07% (95% CI: 1.96-2.17%) to 0.13% (95% CI: 0.09-0.16%), accompanied by significant decrease of infection intensity in population. In 2015, the stool positives were only found in farmers, fishermen and boatmen with infection rate of 0.16% (95% CI: 0.11-0.20%), 0.17% (95% CI: 0-0.50%) respectively. The infection rate of schistosomes in domestic animals dropped from 9.42% (538/5711, 95% CI: 8.66-10.18%) to 0.08% (2/2360, 95% CI: 0-0.20%) from 2005 to 2015. Infections were found in eight species of domestic animals at the beginning of surveillance while only two cattle were infected in 2015. Totally 98 ha of new snail habitats were found, while 94.90% (93/98) distributed in lake and marshland regions. The percentage of frames with snails decreased from 16.96% (56 884/33 5391, 95% CI: 16.83-17.09%) in 2005 to 4.28% (18 121/423 755, 95% CI: 4.22-4.34%) in 2014, with a slightly increase in 2015. Meanwhile, the infection rate of schistosomes in snails was decreased from 0.26% (663/256 531, 95% CI: 0.24-0.28%) to zero during 2005-2015.
Conclusions: The infection rate of schistosomes declined significantly, providing evidence that the goal of the MLNP was achieved. Elimination of schistosomiasis as a public health problem defined as WHO was also reached in P.R. China nationwide. Surveillance-response system should be improved and strengthened to realize the final goal of schistosomiasis elimination.
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