Helminths in rodents from Wet Markets in Thailand

Abstract

SummaryOnly a few surveys have ever been carried out of the helminths of the commensal rodents found in the traditional wet markets that play such an important part of daily life in South-east Asia. The potential of rodents as reservoirs of zoonoses including helminths is of great interest since in these markets humans and rodents come into closer contact than in other environments and food may be indirectly contaminated via rodent faeces. Helminths in a total of 98 rats belonging to two species (Rattus norvegicus and Rattus exulans) were surveyed in eight traditional wet markets in Udon Thani, Thailand. Thirteen species of helminths were recovered, seven of which are potentially zoonotic, with an overall prevalence of 89.8 %. Our results show that rodents in wet markets could pose a threat to human health as potential reservoirs of zoonotic helminthiases.

Molecular genetic diversity of Gongylonema neoplasticum (Fibiger & Ditlevsen, 1914) (Spirurida: Gongylonematidae) from rodents in Southeast Asia

“…The present study aimed to characterise the rDNA and cox1 nucleotide sequences of G. neoplasticum based on material collected as part of several helminth surveys conducted in Thailand, Cambodia, Laos and Philippines during the period February 2008 to August 2014, with additional worms from Indonesia (Pakdeenarong et al, 2014;Palmeirim et al, 2014;Chaisiri et al, 2015Chaisiri et al, , 2016Veciana et al, 2015;Ribas et al, 2016). The majority of worms collected in these surveys had previously undergone microscopic observation for their specific identification.…”

“…During the last 10 years, a variety of murine rodents (approximately 4,500 individuals of more than 20 species) has been trapped in Cambodia, Laos, Philippines and Thailand to try and understand the role of host species and habitat on helminth species richness and to also answer other ecological and epidemiological questions related to parasitic diseases (e.g. Pakdeenarong et al, 2014;Palmeirim et al, 2014;Chaisiri et al, 2015Chaisiri et al, , 2016Veciana et al, 2015;Ribas et al, 2016). As part of these studies, specimens of Gongylonema were recorded from various murine hosts (Pakdeenarong et al, 2014;Palmeirim et al, 2014;Chaisiri et al, 2016;Ribas et al, 2016), a portion of which was used for the present study; 114 worms collected from different individuals of five Rattus spp., M. surifer, and B. bowersi trapped in Thailand (11 localities), Cambodia (three localities), Lao PDR (three localities), and Philippines (one locality) during the period February 2008 to August 2014 (Table 1).…”

Natural Cysticercus fasciolaris infection in rodents from a rural area in Yucatan, Mexico

“…[12][13][14] Synanthropic species such as Rattus norvegicus, Rattus rattus, and Mus musculus are the main intermediate hosts of this parasite, with prevalence ranging from 4.3% 15 to 67.7%. 16 Cysticercus fasciolaris infection has been reported in urban and wild rodents from Brazil, 17 Korea, 18 Egypt, 19 India, 20 Malaysia, 21 Thailand, 22 and Mexico. [23][24][25] Rodents from the R. rattus and M. musculus species have been found infected with C. fasciolaris, in Yucatan.…”