Park, Jung Wook
(Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
,
Yu, Dae Sung
(Division of Animal Disease Control, Animal and Plant Quarantine Agency)
,
Lee, Gi Seong
(Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
,
Seo, Jin Jong
(Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
,
Chung, Jae Keun
(Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
,
Lee, Jae Il
(Department of Veterinary Public Health, College of Veterinary Medicine, Chonnam National University)
A survey of rodents and chiggers associated with Orientia tsutsugamushi was conducted in a rural region of the Republic of Korea (Korea) between 2014 and 2018. Overall Apodemus agrarius 15.2% had the highest seropisitive for O. tsutsugamushi, followed by Myodes regulus 11.4%. Monthly risk factors us...
A survey of rodents and chiggers associated with Orientia tsutsugamushi was conducted in a rural region of the Republic of Korea (Korea) between 2014 and 2018. Overall Apodemus agrarius 15.2% had the highest seropisitive for O. tsutsugamushi, followed by Myodes regulus 11.4%. Monthly risk factors using logistic regression analysis were not associated with O. tsutsugamushi infections in rodents. The overall prevalence rate of O. tsutsugamushi among chiggers was 0.3%. The chigger (Leptotrombidium scutellare) and monthly (October) risk factors were associated with O. tsutsugamushi human infections (P<0.05). Orientia tsutsugamushi infections are endemic in rodents in Korea and people, for example, soldiers who are active outdoors, must employ preventive measures, especially during October (P<0.05). When there are many reports of O. tsutsugamushi infections in Korea. The Boryong strain 85.7% (2/14) was the most common strain detected in chiggers, followed by the Shimokoshi 7.1% (1/14) and Karp 7.1% strains.
A survey of rodents and chiggers associated with Orientia tsutsugamushi was conducted in a rural region of the Republic of Korea (Korea) between 2014 and 2018. Overall Apodemus agrarius 15.2% had the highest seropisitive for O. tsutsugamushi, followed by Myodes regulus 11.4%. Monthly risk factors using logistic regression analysis were not associated with O. tsutsugamushi infections in rodents. The overall prevalence rate of O. tsutsugamushi among chiggers was 0.3%. The chigger (Leptotrombidium scutellare) and monthly (October) risk factors were associated with O. tsutsugamushi human infections (P<0.05). Orientia tsutsugamushi infections are endemic in rodents in Korea and people, for example, soldiers who are active outdoors, must employ preventive measures, especially during October (P<0.05). When there are many reports of O. tsutsugamushi infections in Korea. The Boryong strain 85.7% (2/14) was the most common strain detected in chiggers, followed by the Shimokoshi 7.1% (1/14) and Karp 7.1% strains.
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문제 정의
Therefore, this study examined the seasonal trends of scrub typhus and established the appropriate preventive measures. It also includes a cross-sectional study to determine the risk factors associated with the relationship between the occurrence of O.
This study was conducted to identify the relationship between the risk factors (month, species) and prevalence of O. tsutsugamushi infection in rodents and chiggers. The month associated with the mean distribution of disease was evaluated as a risk factor in rodents by logistic regression analysis using SPSS version 20 software (IBM).
대상 데이터
5×9 inches) (BioQuip, Rancho Dominguez, California, USA). The study area was located in a densely populated area in the southwestern part of Korea, where scrub typhus patients are reported frequently. The information for the human infection rate was obtained from Korea Centers for Disease Control and Prevention(K-CDC) Disease Web Statistics System [3].
데이터처리
It also includes a cross-sectional study to determine the risk factors associated with the relationship between the occurrence of O. tsutsugamushi infections in rodents and the associated chigger vectors from 2014 to 2018 using a statistical program (SPSS 20, IBM, Armonk, New York, USA).
성능/효과
In total, 99/652 (15.2%) serum samples of Apodemus agrarius were seropositive for O. tsutsugamushi, and s were positive for O. tsutsugamushi antibodies throughout the year, with the highest seropositive rate observed during October (Table 1). The summer months of July (odds ratio, 1.
In total, 4, 646/10, 732 (42.3%) of the chiggers collected from the 723 rodents collected were individually tested for O. tsutsugamushi; of these, 14/4, 646 (0.3%) chiggers were positive for O. tsutsugamushi (Table 2). In total, 4, 170/9, 597 (43.
tsutsugamushi (Table 2). In total, 4, 170/9, 597 (43.4%) of the chiggers collected from 652 Apodemus agrarius, of which 13 were positive for O. tsutsugamushi; only 1 (Leptotrombidium orientale) of 476/1, 135 (41.9%) of the chiggers collected from 35 Myodes regulus was positive for O. tsutsugamushi. No chiggers were collected from38 Crocidura lasiura.
No chiggers were collected from38 Crocidura lasiura. The 56-kDa TSA gene of O. tsutsugamushi was detected in 12 Leptotrombidium scutellare individuals and one individual each of L. orientale and L. palpale. The mean number of chiggers collected monthly (except July) from Apodemus agrarius increased significantly beginning in September, and sharply declined in December (Fig.
In conclusion, these results indicate that people must be aware of the risks of the exposure to chiggers that are vectors of O. tsutsugamushi, especially during October when transmission is the highest. According to our study, soldiers, farmers, and other people that spend time outdoors belong to high-risk group sand should be careful when performing outdoor activities, especially during October.
참고문헌 (21)
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