2018
DOI: 10.1371/journal.pntd.0006644
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Comparison of the dynamics of Japanese encephalitis virus circulation in sentinel pigs between a rural and a peri-urban setting in Cambodia

Abstract: Japanese encephalitis is mainly considered a rural disease, but there is growing evidence of a peri-urban and urban transmission in several countries, including Cambodia. We, therefore, compared the epidemiologic dynamic of Japanese encephalitis between a rural and a peri-urban setting in Cambodia. We monitored two cohorts of 15 pigs and determined the force of infection–rate at which seronegative pigs become positive–in two study farms located in a peri-urban and rural area, respectively. We also studied the … Show more

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Cited by 31 publications
(41 citation statements)
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“…Pigs act as an amplifier host of JEV, thus can be a key suspect of spreading infection to human living in close proximity [4]. The detection of JEV in pigs was reported earlier from Cambodia, Singapore, Vietnam, Australia, Japan, China, Thailand, Laos, Indonesia, India etc (Fig 6) [22, 34-42], however the studies on pigs for the presence of JE virus and its genotypes in circulation among pigs in India are limited [19]. Hence, the current investigation was mainly focused on the JE virus detection in pig serum and tonsil in three different JE endemic states of India namely Odisha, Assam and Manipur.…”
Section: Discussionmentioning
confidence: 94%
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“…Pigs act as an amplifier host of JEV, thus can be a key suspect of spreading infection to human living in close proximity [4]. The detection of JEV in pigs was reported earlier from Cambodia, Singapore, Vietnam, Australia, Japan, China, Thailand, Laos, Indonesia, India etc (Fig 6) [22, 34-42], however the studies on pigs for the presence of JE virus and its genotypes in circulation among pigs in India are limited [19]. Hence, the current investigation was mainly focused on the JE virus detection in pig serum and tonsil in three different JE endemic states of India namely Odisha, Assam and Manipur.…”
Section: Discussionmentioning
confidence: 94%
“…The main cause of viral encephalitis in Asia is JEV. The transmission of JEV is endemic in around 24 countries of South East Asia and Western Pacific regions [22]. More than 3 billion people are at risk of JEV infection with approximately 68,000 clinical cases reported every year [23].…”
Section: Introductionmentioning
confidence: 99%
“…B) was mostly influenced by vaccination ( v ), which generated about 40% of the total variance. The interaction between the vector population size (η) and the vector to host ratio ( φ ), contributed a significant part of total variance (15%). The influence of other parameters was much lower.…”
Section: Resultsmentioning
confidence: 99%
“…If the newly emerged female becomes infectious 15 days after emergence, it will remain infectious between 6 days (lifespan of 21 days) and 15 days (lifespan of 30 days). The average of the four preceding values (14, 21, 6, 15), 14 days, was considered the average duration of I state in vectors. Considering the minor role of direct transmission in disease dynamic (61) a consecutive duration of 14 days with less than 1 viremic pig ( I state) would result, on average, in the death of all the infectious vectors, without any new infection of susceptible mosquitoes.…”
Section: Methodsmentioning
confidence: 99%
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