The survey of flies of medical and veterinary importance in Thailand

Abstract-The aim of this study was to isolate and identify fungi on the external surfaces of adult house fly, Musca domestica and the blow fly, Chrysomya megacephala. These flies were collected from two districts in Northeastern Thailand: Muang and Warinchamrap in Ubon Ratchathani province, in September 2010. The main fungi isolated were Mucorales, followed by Yeast, Aspergillus niger and Penicillium spp. However, various species were identified including Aspergillus fumigatus, Gliocladium spp., Fusarium spp., Drechslera spp., Scedosporium apiospermum, Cladosporium spp. and Nocardia spp. This study demonstrated that both adult; M. domestica and C. megacephala have the ability to function as carriers for fungal spores and might be important in the transmission of fungi to humans in this area.

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ISOLATION OF FUNGI FROM ADULT HOUSE FLY; MUSCA DOMESTICA AND THE BLOW FLY Chrysomya megacephala IN UBON RATCHATHANI PROVINCE, NORTHEASTERN THAILAND

Srivoramas¹,

Chaiwong²,

Sanford³

2012

“…In Thailand, there are 93 blow fly species belonging to 9 subfamilies including Subfamily Ameniinae, Calliphoridae, Luciliinae, Phumosiinae, Polleniinae, Bengaliinae, Auchmeromyiinae, Chrysomyinae and Rhiniinae [7], as shown in Table 1. [7], Sucharit and Tumrasvin [9], and partly upon collections made by the author Most species seem to have Oriental elements (79%), followed by Palaearctic (2%), pantropical or cosmopolitan (2%) and Afrotropical ones (1%). About 16% of species found in Thailand and its adjacent areas are endemic [7].…”

Section: Distribution Of Blow Flies In Thailandmentioning

confidence: 95%

“…Previous fly surveys conducted in both urban and rural areas in some provinces, such as Ayutthaya, Bangkok, Chiang Mai, Chonburi, Chantaburi, Kanchanaburi, Khonkaen, Nonthaburi, Nakhon Pathum, Nakhon Sawan, Pathum Thani, Phitsanulok, Prachin Buri, Prae, Samut Prakan, Rayong, Srisakes, Supanburi, Ubon Rajathani, Udon Thani and Utttradit, indicated that C. megacephala (Fig. 1A) is the most abundant blow fly species [4,[8][9][10][11][12]. Provinces reporting where this blow fly species has been found to occur already are summarized in Fig.…”

Section: Distribution Of Blow Flies In Thailandmentioning

confidence: 99%

Blow Fly (Diptera: Calliphoridae) in Thailand: Distribution, Morphological Identification and Medical Importance Appraisals

Bunchu¹

2012

Abstract-The blow fly is considered to be a medically-important insect worldwide. This review is a compilation of the currently known occurrence of blow fly species in Thailand, the fly's medical importance and its morphological identification in all stages. So far, the 93 blow fly species identified belong to 9 subfamilies, including Subfamily Ameniinae, Calliphoridae, Luciliinae, Phumosiinae, Polleniinae, Bengaliinae, Auchmeromyiinae, Chrysomyinae and Rhiniinae. There are nine species including Chrysomya megacephala, Chrysomya chani, Chrysomya pinguis, Chrysomya bezziana, Achoetandrus rufifacies, Achoetandrus villeneuvi, Ceylonomyia nigripes, Hemipyrellia ligurriens and Lucilia cuprina, which have been documented already as medically important species in Thailand. According to all cited reports, C. megacephala is the most abundant species. Documents related to morphological identification of all stages of important blow fly species and their medical importance also are summarized, based upon reports from only Thailand.

“…It is one species of a group of synanthropic flies that have been reported to be associated with unsanitary conditions and involved in the dissemination of human enteropathogens in the environment [3]. In Thailand, it is the most abundant blow fly species collected in surveys of synanthropic flies [4][5][6]. The greatest medical importance of C. megacephala is its potential as a mechanical carrier of various pathogens that may cause disease in humans.…”

Section: Introductionmentioning

confidence: 99%

BACTERIAL FAUNA ASSOCIATED WITH THE BLOW FLY, Chrysomya megacephala (F.) IN UBON RATCHATHANI PROVINCE OF NORTHEAST THAILAND

Chaiwong¹,

Srivoramas²,

Sukontason³

et al. 2012

Abstract-The objective of the current study was to isolate and identify the bacterial fauna associated with populations of the Oriental latrine fly, Chrysomya megacephala, collected in the Muang district of Ubon Ratchathani province, an area of high diarrhoeal disease incidence. A total of 294 flies were collected from September 2010-August 2011 using a sterilized insect sweep net at each collection site including freshfood markets, garbage piles, restaurants, school cafeterias and paddy fields of Muang Ubon Ratchathani in the Ubon Ratchathani province. Each specimen was transferred into individual sterile glass vials for bacterial isolation using standard bacterial isolation techniques from the external surfaces of the flies of the 294 flies collected, 98.64% were found to be carrying multiple species of bacteria. A total of 15 bacterial genera were isolated, including both potentially pathogenic and non-pathogenic bacteria.The most common bacterium isolated from C. megacephala was coagulase-negative staphylococci (80.27%) followed by Streptococcus group D non-enterococci (69.05%). Among these were human pathogenic enteric bacteria including Escherichia coli O157:H7 (EHEC) and Salmonella typhi with the prevalence rates in flies being 3.06% and 20.88% respectively. Furthermore, other human pathogens were found such as Staphylococcus aureus and Pseudomonas aeruginosa. The present study demonstrates the potential of C. megacephala to vector pathogenic enteric bacteria to humans .