1.Prevalence of Dirofilaria immitis in Dogs in Shenyang, Northeastern China.
Chengwu LIU ; Na YANG ; Jianbin HE ; Min YANG ; Ming SUN
The Korean Journal of Parasitology 2013;51(3):375-377
In the present study, we first report the seroprevalence of Dirofilaria immitis in dogs in Shenyang, northeastern China. Sera from 528 randomly selected dogs were examined for D. immitis antigen using SNAP(R)4Dx test kit; 12.7% tested showed seropositive. No significant difference of infection was observed in different genders and breeds (P>0.05), but the difference was significant in different age groups and rearing conditions (P<0.05). The result suggested that the risk of exposure to D. immitis in dogs is high in Shenyang, and should be given attention.
Animals
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China/epidemiology
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*Dirofilaria immitis
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Dirofilariasis/epidemiology/*parasitology
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Dog Diseases/epidemiology/*parasitology
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Dogs
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Seroepidemiologic Studies
2.A Survey of Ectoparasite Infestations in Stray Dogs of Gwang-ju City, Republic of Korea.
Jeong Hyun CHEE ; Jung Kee KWON ; Ho Seong CHO ; Kyoung Oh CHO ; Yu Jin LEE ; A M ABDEL-ATY ; Sung Shik SHIN
The Korean Journal of Parasitology 2008;46(1):23-27
This study was designed to investigate the incidence of ectoparasite infestation among stray dogs in Gwang-ju City, Republic of Korea. A total of 103 stray dogs collected in the Animal Shelter of Gwang-ju City from November 2003 to August 2005 were investigated in this study. Ectoparasites of one or more genera were detected in 45.6% (47 / 103) of the dogs examined for dermatologic lesions and/or skin scrapings (from 3-5 affected areas). Otodectes cynotis was found to be the most frequent parasite (22.3%, 23 / 103), followed by Sarcoptes scabiei var canis (19.4%, 20 / 103), Ctenocephalides canis (6.8%, 7 / 103), Demodex canis (4.9%, 5 / 103), and Trichodectes canis (1.0%, 1 / 103). Monospecific infestation was found in 83.0% (39 / 47) of the affected dogs, whereas concurrent infestations with 2 or more ectoparasites per animal were found in 17.0% (8 / 47) of the affected dogs. Trichodectes canis is reported for the first time in the Republic of Korea. Dogs less than 1 yr old were more heavily infected than other age groups (66.7%), and small-sized dogs of less than 3 kg body weight were more heavily infected than larger dogs (41.7%).
Age Distribution
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Animals
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Dog Diseases/*epidemiology/*parasitology
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Dogs
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Ectoparasitic Infestations/epidemiology/*veterinary
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Female
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Korea/epidemiology
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Male
3.A Survey of Ectoparasite Infestations in Stray Dogs of Gwang-ju City, Republic of Korea.
Jeong Hyun CHEE ; Jung Kee KWON ; Ho Seong CHO ; Kyoung Oh CHO ; Yu Jin LEE ; A M ABDEL-ATY ; Sung Shik SHIN
The Korean Journal of Parasitology 2008;46(1):23-27
This study was designed to investigate the incidence of ectoparasite infestation among stray dogs in Gwang-ju City, Republic of Korea. A total of 103 stray dogs collected in the Animal Shelter of Gwang-ju City from November 2003 to August 2005 were investigated in this study. Ectoparasites of one or more genera were detected in 45.6% (47 / 103) of the dogs examined for dermatologic lesions and/or skin scrapings (from 3-5 affected areas). Otodectes cynotis was found to be the most frequent parasite (22.3%, 23 / 103), followed by Sarcoptes scabiei var canis (19.4%, 20 / 103), Ctenocephalides canis (6.8%, 7 / 103), Demodex canis (4.9%, 5 / 103), and Trichodectes canis (1.0%, 1 / 103). Monospecific infestation was found in 83.0% (39 / 47) of the affected dogs, whereas concurrent infestations with 2 or more ectoparasites per animal were found in 17.0% (8 / 47) of the affected dogs. Trichodectes canis is reported for the first time in the Republic of Korea. Dogs less than 1 yr old were more heavily infected than other age groups (66.7%), and small-sized dogs of less than 3 kg body weight were more heavily infected than larger dogs (41.7%).
Age Distribution
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Animals
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Dog Diseases/*epidemiology/*parasitology
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Dogs
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Ectoparasitic Infestations/epidemiology/*veterinary
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Female
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Korea/epidemiology
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Male
4.Prevalence of Toxocara canis in Dogs, North West Bank of Palestine.
The Korean Journal of Parasitology 2011;49(2):181-182
This study was performed to investigate the prevalence of Toxocara canis in local districts in North West Bank of Palestine. Fecal samples from 132 dogs were collected in Nablus, Tulkarm, and Jenin cities from September 2008 to April 2009 and examined for T. canis eggs with the floating technique. The overall infection rate of toxocariasis in dogs was 36.4%. The dogs less than 6 months old showed higher infection rates than those older than 12 months (P=0.04). Vigorous interventions are necessary, such as routine coprological examinations of dogs and prescription of anthelmintics to infected dogs.
Age Distribution
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Animals
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Dog Diseases/*parasitology
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Dogs
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Feces/parasitology
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Middle East/epidemiology
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Prevalence
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Toxocara canis/*isolation & purification
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Toxocariasis/*parasitology
5.Prevalence of Toxoplasma gondii in Dogs in Zhanjiang, Southern China.
Hai Hai JIANG ; Ming Wei LI ; Min Jun XU ; Wei CONG ; Xing Quan ZHU
The Korean Journal of Parasitology 2015;53(4):493-496
Toxoplasmosis, caused by Toxoplasma gondii, is a parasitic zoonosis with worldwide distribution. The present study investigated the prevalence of T. gondii in dogs in Zhanjiang city, southern China, using both serological and molecular detection. A total of 364 serum samples and 432 liver tissue samples were collected from the slaughter house between December 2012 and January 2013 and were examined for T. gondii IgG antibody by ELISA and T. gondii DNA by semi-nested PCR based on B1 gene, respectively. The overall seroprevalence of T. gondii IgG antibody was 51.9%, and T. gondii DNA was detected in 37 of 432 (8.6%) liver tissue samples. These positive DNA samples were analyzed by PCR-RFLP at 3'- and 5'-SAG2. Only 8 samples gave the PCR-RFLP data, and they were all classified as type I, which may suggest that the T. gondii isolates from dogs in Zhanjiang city may represent type I or type I variant. This study revealed the high prevalence of T. gondii infection in dogs in Zhanjiang city, southern China. Integrated measures should be taken to prevent and control toxoplasmosis in dogs in this area for public health concern.
Animals
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Antibodies, Protozoan/blood
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China/epidemiology
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Dog Diseases/epidemiology/*parasitology
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Dogs
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Female
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Genotype
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Liver/parasitology
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Male
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Toxoplasma/classification/genetics/immunology/*isolation & purification
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Toxoplasmosis, Animal/blood/epidemiology/*parasitology
6.Interspecies Phylogenetic Analysis of
Xiao Lei LONG ; Shi Ping WANG ; Shuai Feng ZHOU ; Zheng Xiang LI ; Shi Feng ZHUANG ; Zhuo HE
Biomedical and Environmental Sciences 2021;34(11):881-890
Objective:
This study aims to investigate the infection of
Method:
Infection of the definitive human host and intermediate fish host by
Results:
In 2016-2020, the average population infection rate of Hunan was 1.38%, while in Tongdao County the rate was up to 26.90%, and the highest fish infection rate was detected in Qiyang County (99.44% in the dorsal fin of
Conclusion
The systematically study of
Animals
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Cat Diseases/parasitology*
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Cats
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China/epidemiology*
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Clonorchiasis/veterinary*
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Clonorchis sinensis/genetics*
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Dog Diseases/parasitology*
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Dogs
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Fish Diseases/parasitology*
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Fishes
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Humans
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Incidence
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Prevalence
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Species Specificity
7.Seroprevalence of Toxoplasma gondii Infection in Police Dogs in Shenyang, Northeastern China.
Cheng Wu LIU ; Na YANG ; Jian Bin HE ; Ming Yang MU ; Min YANG ; Ning SUN ; Hong Kui LI
The Korean Journal of Parasitology 2013;51(5):579-581
In recent years, worldwide surveys of Toxoplasma gondii infection in dogs have been reported. However, only limited surveys of T. gondii infection in police dogs have been available, including China. In the present study, we report the seroprevalence of T. gondii in police dogs in Shenyang, northeastern China. Sera from 291 police dogs were examined for T. gondii antibodies with the modified agglutination test (MAT), and 30.9% animals were tested seropositive. The results of the present study indicated a relatively high prevalence of T. gondii infection in police dogs in Shenyang, China.
Agglutination Tests/veterinary
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Animals
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Antibodies, Protozoan/*blood
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China/epidemiology
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Dog Diseases/*epidemiology/parasitology
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Dogs
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Female
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Male
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Seroepidemiologic Studies
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Toxoplasma/*immunology/isolation & purification
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Toxoplasmosis, Animal/*epidemiology/parasitology
8.Seroprevalence of antibodies to Neospora caninum in dogs and raccoon dogs in Korea.
Jae Hoon KIM ; Min Soo KANG ; Byung Chun LEE ; Woo Suk HWANG ; Chang Woo LEE ; Byung Jae SO ; J P DUBEY ; Dae Yong KIM
The Korean Journal of Parasitology 2003;41(4):243-245
Neospora caninum is an important cause of abortion in cattle, and dogs are its only known definitive host. Its seroprevalence among domestic urban and rural dogs and feral raccoon dogs (Nyctereutes procyonoides koreensis) in Korea was studied by indirect fluorescent antibody test (IFAT) and by the neospora agglutination test (NAT), respectively. Antibodies to N. caninum were found in 8.3% of urban dogs and in 21.6% of dogs at dairy farms. Antibody titers ranged from 1: 50 to 1: 400. Antibodies to N. caninum were found in six (23%) of 26 raccoon dogs. However, the potential role of raccoon dogs as a source of horizontal transmission of bovine neosporosis needs further investigation. The results of this study suggest that there is a close relationship between N. caninum infection among dairy farm dogs and cattle in Korea. This study reports for the first time upon the seroprevalence of N. caninum infection in raccoon dogs in Korea.
Animals
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Animals, Domestic
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Animals, Wild
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Antibodies, Protozoan/*blood
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Carnivora/*parasitology
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Coccidiosis/epidemiology/*veterinary
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Dog Diseases/*epidemiology/parasitology
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Dogs
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Korea/epidemiology
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Neospora/*immunology
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Seroepidemiologic Studies
9.Prevalence of Giardia intestinalis and other zoonotic intestinal parasites in private household dogs of the Hachinohe area in Aomori prefecture, Japan in 1997, 2002 and 2007.
Naoyuki ITOH ; Kazutaka KANAI ; Yasutomo HORI ; Fumio HOSHI ; Seiichi HIGUCHI
Journal of Veterinary Science 2009;10(4):305-308
An epidemiological study on canine intestinal parasites was undertaken to evaluate changes in the prevalence among private household dogs from the Hachinohe region of Aomori prefecture, Japan, in 1997, 2002 and 2007, using the formalin-ethyl acetate sedimentation technique. The risk of zoonotic transmission from household dogs to humans was also discussed. All intestinal parasites detected in the present study (Giardia intestinalis, Isospora spp., Toxocara canis, Ancylostoma caninum, Trichuris vulpis and Strongyloides stercoralis) showed no changes in prevalence over the past 10 years based on analysis considering canine epidemiological profiles. In particular, prevalence of Giardia intestinalis in dogs under 1 year old, derived from pet shops/breeding kennels and kept indoors was unchanged, remaining at a high level of >15.0% at each time point. Toxocara canis also showed no changes in the group of dogs under 1 year old, bred by private owners and kept outdoors, and the prevalence was >10.0% every year. The present results indicate that the prevalence of Giardia intestinalis and other intestinal parasites in private household dogs has not always decreased, and the potential for direct parasitic zoonotic transmission from dogs to humans may be relatively high level, than from the environment (indoors and outdoors). We recommend careful surveillance of intestinal parasites and aggressive use of anthelminthic in private household dogs under considering the epidemiological factors.
Animal Husbandry
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Animals
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Anthelmintics/*therapeutic use
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Dog Diseases/drug therapy/epidemiology/*parasitology
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Dogs
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Giardia lamblia/*isolation & purification
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Humans
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Intestinal Diseases, Parasitic/drug therapy/epidemiology/parasitology/*veterinary
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Japan/epidemiology
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Parasitic Diseases, Animal/drug therapy/epidemiology/*parasitology
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Prevalence
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Time Factors
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Zoonoses
10.Longitudinal investigation and experimental studies on thelaziasis and the intermediate host of Thelazia callipaeda in Guanghua county of Hubei province.
Zeng-xian WANG ; Yue HU ; Ji-long SHEN ; Ke-can WANG ; Hong-yan WANG ; Bao-ling JIANG ; Peng ZHAO ; Zhi-cheng WANG ; Wei DING ; Feng WANG ; Xiu-fang XIA
Chinese Journal of Epidemiology 2003;24(7):588-590
OBJECTIVETo verify houseflies Musca spp. as the intermediate host of Thelazia callipaeda and reveal epidemiological situation of thelaziasis in Hubei province.
METHODSDogs eyes infected with T. callipaeda, 400 houseflies Musca and 259 fruitflies Amiota okadai in the city of Laohekou city (previously named as Guanghua county) of Hubei province had been investigated since September 2000. The newborn larvae of T. callipaeda from Laohekou suburbs were fed to houseflies Musca and A. okadai. Larvae used for the study were isolated from female T. callipaeda in laboratory and the susceptibility to houseflies Musca and A. okadai was observed.
RESULTSTwenty-one dogs from Laohekou, the original epidemic areas of thelaziasis were examined and 7 positive dogs in 21 (33.3%) and 11 T. callipaeda (9 females and 2 males) were identified. From 1975 to 2000, no thelaziasis cases were found through retrospective surveys. These 200 houseflies Musca and 135 A. okadai were dissected for examination but showed all negative with the infection. However, newborn larvae of T. callipaeda were used to experimentally infect 112 houseflies Musca and 84 A. okadai and all infected flies were examined on the 20th day after inoculation. As a consequence, houseflies Musca failed to be infected but 9 in 84 (10.7%) A. okadai were positive. 26 infective larvae of T. callipaeda were obtained and 21 of them were inoculated into right eye of one rabbit. The female worm began to produce newborn larvae in 37 days after infection and 3 adult T. callipaeda (two females and one male) were obtained.
CONCLUSIONSFruitflies A. okadai from Hubei province were susceptible to T. callipaeda, which was similar to the result of experimental studies in Anhui province. This survey further confirmed that A. okadai was the intermediate host of T. callipaeda but not houseflies Musca. Infective resources (adult dogs, for instance) had been under controlled thus human thelaziasis had been eradicated in this rural area.
Animals ; Conjunctivitis ; parasitology ; Disease Reservoirs ; Dog Diseases ; parasitology ; Dogs ; Drosophila ; parasitology ; Eye Infections, Parasitic ; epidemiology ; transmission ; veterinary ; Female ; Host-Parasite Interactions ; Houseflies ; parasitology ; Humans ; Insect Vectors ; parasitology ; Longitudinal Studies ; Male ; Spirurida Infections ; epidemiology ; transmission ; veterinary ; Thelazioidea ; isolation & purification ; physiology