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Molecular identification and antifungal susceptibility patterns of dermatophytes isolated from companion animals with clinical symptoms of dermatophytosis
2021
Katiraee, Farzad | Kouchak Kosari, Yasaman | Soltani, Minoo | Shokri, Hojjatollah | Hassan Minooieanhaghighi, Mohammad
Dermatophytosis is a common skin disease in cats and dogs caused by Microsporum and Trichophyton fungi. Species identification and knowledge of their antifungal susceptibility are therapeutically and epidemiologically important. This study assessed the prevalence of feline and canine dermatophytosis in Iran, identified the aetiological agents molecularly and tested their antifungal susceptibility. A total of 308 companion animals (134 dogs and 174 cats) with skin lesions were examined from March 2015 to March 2018. Hair and skin samples were examined by microscopy with 20% KOH and cultured on Sabouraud dextrose agar with cycloheximide and chloramphenicol. Fungal isolates were confirmed by sequencing of the internal transcribed spacer (ITS) r-DNA region. The antifungal susceptibility of dermatophytes was tested by broth microdilution assay using standard drugs. Dermatophytes were found in 130 (42.2%) samples, 62 of them feline and 68 canine. Based on sequencing of all strains, M. canis (78.5%, P<0.05), M. gypseum (10.7%), and T. mentagrophytes (10.7%) were the dermatophytes isolated. The non-dermatophyte species Nannizziopsis vriesii was also isolated from two feline dermatomycosis cases. Dogs and cats younger than one year (61.5%) showed a statistically significantly higher prevalence of infection (P<0.05). Caspofungin produced the lowest geometric mean MIC at 0.0018 μg/mL, followed by ketoconazole, terbinafine, itraconazole, miconazole, griseofulvin, clotrimazole and fluconazole, in a 0.038–1.53 μg/mL range. This is the first molecular study to identify the causes of pet dermatophytosis in north-western Iran. ITS-PCR was shown to be a useful and reliable method for the identification of closely related species of dermatophytes in clinical and epidemiological settings. The lowest MIC of caspofungin indicated that this drug was the most potent in vitro.
Afficher plus [+] Moins [-]Geographical mapping on seropositive status of melioidosis among livestock in Malaysia from 2012 to 2016
2018
Masrin A. | Nurul Fatiha A. S. | Fakhrulisham R. | Sharil Azwan M. Z.
A total of 145,347 samples (4,322 cases) were received for the passive surveillance of melioidosis in the Serology Laboratory of Veterinary Research Institute (VRI) from the year 2012 to 2016. From the samples received, 0.63% were positive and 99.37% were negative. The objective of this study is to determine the seropositive rate and distribution of melioidosis in livestockbased on cases received which comprise of sheep (37.24%, n=54,130), goat (54.01%, n=78,500), cattle (8.12%, n=11,804) andbuffalo (0.63%, n=913) within the period of 5 years. A geographical mapping of seropositive cases was designed using thedata from the passive surveillance and the results were visualized in a geographical mapping which provides a clear visual description on the distribution of the diseases. By 2016, positive cases were found to be concentrated in the states on the east coast of Peninsular Malaysia and Sabah. To sum up, the percentage of seropositive cases of melioidosis in 5 years has increased from 1.79% in 2012 to 12.17% in 2015 and decreased to 1.04% in 2016. From the findings, this study can provide the dataneeded as the indicator for the evaluation of surveillance and vaccination programmes, disease eradication planning and to monitor the distribution of seropositive cases of melioidosis in Malaysia.
Afficher plus [+] Moins [-]Prevalence of Salmonella sp. in wild rats in Kelantan
2017
Syarifah Asiah M. A. | Norlida O. | Nur Raihan M. A. | Saipul Bahari A. R. | Nur Ain Shafiqah M. S. | Mohd Zawawi M. | Che Mud C. M. | Wan Norulhuda W. A. W. | Zubaidah M. A. | Siti Zubaidah M. Z.
Salmonella is known as one of the important food-borne pathogenthat causes salmonellosis in human and animals worldwide. A prevalence study on salmonellosis was conducted on wild rats in Kelantan. From April to June 2015, a total of 36 rats and house shrews sent to the Regional Veterinary Laboratory in Kota Bharu, Kelantan were examined for the presence of Salmonella. These animalswere caught from various locations in the state and were sent to the laboratory either as live or dead specimens. Post mortem wasconducted and intestines were taken for detection of salmonellosis. Results showed that of the 32 rats and 4 shrews examined, 5 (15.6%) rats and 3 (75%) shrews were found positive and on serotyping fourserotypes of Salmonella were identified which are Salmonella ser. Kalamu (62.5%), Salmonella ser. Thyphimurium (12.5%), Salmonella ser. Weltevreden (12.5%) and Salmonella ser. Brancaster (12.5%). In conclusion, positive identification of Salmonella in wild rats indicates that there is a possible transmission of the pathogento humans due to constant contact between the two. Thus appropriate measures are needed to control these pests population to prevent spread of diseases to the humans and animals.
Afficher plus [+] Moins [-]Antimicrobial resistance in veterinary clinical isolates of Escherichia coli from northern region of Peninsular Malaysia
2017
Muhammad Azim Fikri A. G. | Mohd. Azizul O. | Syamsyul A. | Shahaza O. | Zakirah S. | Maswati M. A.
Increased emergence in microbial resistance to antibiotics is a growing problem globally. A retrospective investigation was made of antimicrobial resistance in a total of 2,345 Escherichia coli isolates from clinical cases submitted to Regional Veterinary Laboratory of Bukit Tengah, Penang, Malaysia between January 2000 and December 2015. Analysis using WHONET 5.6 revealed that resistance to ampicillin, norfloxacin and aminoglycosides was detected in isolates from poultry and pigs more often than ruminants. Resistant to colistin was higher in ruminants compared to other animal groups. Nor floxacin susceptibility was very high in isolates from ruminants, pet birds (82.2%) and zoo animals (88.6%). Isolates from pet birds had higher resistant rate to all of the antimicrobials tested compared to zoo and companion animals. Multidrug-resistant (MDR) E. coli isolates (29.25%, 684/2345) were detected in this study. Further efforts, for instance, national monitoring and surveillance, are required to quantify the exposure of animals to antimicrobial agents and resistant pathogenic or commensal bacteria in the animals and also its environment. Such useful information indeed will assist the prudent use of antimicrobial agents in veterinary practice; therefore, suppress the emergence of antimicrobial resistance in animals.
Afficher plus [+] Moins [-]Coccidiosis in village chicken: a preliminary survey in Pasir Putih District, Kelantan, West Malaysia
2017
Norlida O. | Nur Syakila M. Z. | Saipul Baharia R. | Wan Norulhuda W. A. W. | Nik Kamarudin T.
A study was carried out to detect and identify the presence of coccidia oocysts in the faeces of village chicken from the district of Pasir Putih, Kelantan, West Malaysia. A total of 135 fecal samples were collected from 15 areas in the Pasir PutihDistrict. The faecal samples were examined by direct smear method (qualitative study). A pinch of the faeces was put onto the glassslide with 1-2 drops of normal saline and cover slip, which was then observed under the compound microscope to detect thecoccidia oocysts. The presence of coccidia oocyst was then identified by its size and shape. Results showed that ten out of 135 samples were positive for coccidia oocysts, and classified as Eimeria maxima and Eimeria mitis, both of which are from two locations at Kampung Chap Banir, Pasir Putih, Kelantan. The remaining 125 samples were observed to be negative. This may suggest that the chickens reared in the backyard (extensive)are less susceptible to the coccidia infection due to their environment with lower stocking density (mostly free ranging chicken), and no damp/wet litter as bedding which canfacilitate sporulation of the coccicia oocyst thereby spreading the infection. Further studies need to be done to elucididate other factors which may affect coccidial infections in free range chicken such as the availability of medications in feed or genetic hardiness and tolerance to field infections. The localvillage chicken industry is an up and coming facet of the poultry industry and needs concerted efforts to boost it.
Afficher plus [+] Moins [-]Capsular serogroup of Pasteurella multocida isolated in VRI, Malaysia from year 2014 to 2016
2017
Khoo, E. | Siti Nor Hanani R. | Fhitri M. | Rosnah Y. | Nafizah M. | Noormah M. A. | Khoo, L. L. | Roseliza R. | Saifu Nazri R. | Zamila Z.
A total of 65 Pasteurella multocida were isolated and identified from various animal’s samples received by Veterinary Research Institute (VRI) during the period of 2014 to 2016. These animals comprises of cattle, goat, pig, chicken, duck and rabbit. The serogroup of Pasteurella multocida were carried out using designation system of Carter’s capsular typing and molecular serogrouping method. Based on cases submitted to VRI, the prevalence of pasteurellosis in Malaysia ranging from 1.0% to 3.2% (2014 to 2016). It is low compared to previous reports and the pattern of predominant serogroups and animal hosts were found to be changing every year. In 2014, 80% (12/15) of the isolates were Pasteurella multocida Carter’s type D where all were isolated from goats. In 2015, the predominant serogroup changed to Pasteurella multocida Carter’s type A with a prevalence rate of 40.6% (13/32) which were mostly isolated from duck and cattle. While for Pasteurella multocida Carter’s type D, the prevalence in 2015 reduced to 21.9% (7/32) compared to the previous year and it was isolated from various animal species. Interestingly, in 2015 there was one isolate of Pasteurella multocida Carter’s type B isolated from goat with no reported history of outbreak. In 2016, the prevalence of Pasteurella multocida Carter’s type A increased to 72.2% (13/18), with a high percentage (92.3%) infection in young calves showing clinical signs with high mortality and morbidity in infected farms. Furthermore, during these 3 years of study, 3 isolates of Pasteurella multocida serogroup F were also identified each from pig, goat and chicken, respectively. In conclusion, this study revealed that pasteurellosis had become sporadic in Malaysia and the distribution of serogroups were diverse in all species of animal with no definitive host.
Afficher plus [+] Moins [-]Antigen detection of foot-and-mouth disease and serotypes from samples submitted to the Regional Veterinary Laboratory Kota Bharu from 2012 to 2016
2017
Zubaidah M. A. | Tariq J. | Mohd Daud Z. | Mahazan M. S.
In Peninsular Malaysia, footand-mouth disease (FMD) has been reported since early 1860 which then became sporadic, causing outbreaks every year. Since then, Peninsular Malaysia has become endemic with FMD. The aim of this study is to provide findings of the current FMD occurrence and its serotyping in Peninsular Malaysia. An identification of Foot and Mouth Disease serotype was carried out in Peninsular Malaysia by the Regional Veterinary Laboratory Kota Bharu (RVLKB) only. Epithelial tissue samples were received from 10 states throughout Peninsular Malaysia from 2012 until 2016. Indirect sandwich ELISA was performed using ELISA kit for FMDV antigen detection supplied from the Institute for Animal Health, Pirbright Laboratory. All findings and results in this paper were based on samples received by RVLKB and does not reflect overall cases reported to State DVS or to DVS Malaysia. From the results, 2013 had the highest samples positive for FMDV (35% from 43 samples), followed by 2014 (31% from 80 samples), 2012 (24% from 122 samples), 2015 (21% from 39 samples) and the lowest is 2016 (17% from 194 samples). The FMDV serotypes detected throughout 2012 to 2016 from 110 positive samples were Serotype O (80%), followed by Serotype A (20%) and none from Serotype Asia 1. Strict regulation, FMD vaccine evaluation by LPB ELISA and strict animal movement shall be considered to achieve FMD free for upcoming Year 2020.
Afficher plus [+] Moins [-]Ignorance as a factor influencing the prevalence of onchocerciasis in some villages in Oyo State, Nigeria
2017
Akinboade, O. A. | Anong, C. I. N. | Uwalaka, E. C.
Most studies on Simulum damnosum in Nigeria has focused mainly on the problem of onchocerciasis from the ecological standpoint. However, this study is aimed at viewing it from the human angle, with focus placed on the ignorance of the rural dwellers about the influences of their environment on the increasing incidences of onchocerciasis in their population. The premise is that, as the government and the scientists are working towards finding a lasting solution to the epidemic, the rural dwellers need to wake up to the realities of their own destiny. They need to come out and collaborate with other good efforts to form a strong united force that will rid their society of this menace. A study on the level of ignorance was carried out. It is assumed that their ignorance has kept the villagers relatively inactive and passive about freeing themselves. A descriptive method was used for this research and about 450 villagers were randomly selected and verbally interviewed. A questionnaire was designed and used as the instrument of the research. The research was carried out in two different villages of Asejire and Asepari. Findings were encouraging. Some of the villagers did not know about the existence of the disease even when some of their close relatives showed the symptoms. This high level of ignorance shows that it will be difficult to attain any cooperation from them in any attempt to make their environment unfavourable for the vector.
Afficher plus [+] Moins [-]Ocular squamous cell carcinoma in Simmental cattle in Zimbabwe
1995
Otter, W.D. | Hill, F.W.G. | Klein, W.R. | Everse, L.A. | Ruitenberg, E.J. | Ven, T.M. van der | Koten, J.W. | Steerenberg, P.A. | Faber, J.A.J. | Rutten, V.P.M.G.
In Zimbabwe, ocular squamous cell carcinoma (OSCC) was frequently observed in 5 breeding herds of Simmental cattle, a Bos taurus breed originating from Switzerland. In these herds, initial signs of OSCC were already noticeable in cattle about 3 years old. Gradually, OSCC prevalence increased, and 36 to 53% of cattle over 7 years old had 1 or more tumors. More tumors developed in Simmental cattle with periorbital white skin than in cattle with periorbital pigmented skin. Other breeds of cattle (eg, Friesian) also are partly white-faced and live in Zimbabwe in a comparable environment; yet, OSCC prevalence was lower in those breeds.
Afficher plus [+] Moins [-]Seroepidemiologic survey of Borrelia burgdorferi exposure of dairy cattle in Wisconsin
1994
Ji, B. | Collins, M.T.
An ELISA, using purified flagellin of Borrelia burgdorferi as the solid-phase antigen, was used to measure antibody concentrations to B burgdorferi in dairy cattle in Wisconsin. Serum obtained from 5,060 cows in 160 randomly selected herds in the state were tested. Serum from an additional 2,600 cattle in Barron County, Wis, a county with a high annual incidence of B burgdorferi infections in human beings, was also tested. Only 7% of the cows that were tested, but 66% of the herds that were tested, were seropositive for B burgdorferi. Sixteen percent of the herds had a prevalence of 15% seropositive cows, whereas 50% of the herds had a prevalence of 1 to 14% seropositive cows. Seropositive herds were concentrated in the west-central part of Wisconsin. An association existed between the geographic location of seropositive herds and counties in which B burgdorferi infection of human beings was acquired (P < 0.05) as well as the geographic location of seropositive herds and the geographic distribution of Ixodes scapularis (P < 0.05). Barron County, in which B burgdorferi infection is endemic, had a significantly (P < 0.05) higher percentage of seropositive cows (17%) than did the state of Wisconsin (7%).
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