PHWR Public Health Weekly Report

Vol.14 No.44, October 28, 2021 Article TypeCOVID-19 Special ReportEpidemiology and SurveillanceNoncommunicable Disease StatisticsOriginal Articles

• COVID-19 Special Report 2021-10-28

  0 237 93

  Analysis of the viral load in respiratory samples of patients infected SARSCoV-2 delta variant

  Jeong-Min Kim, Nam-Joo Lee, Heui Man Kim, Jee Eun Rhee, Jae Sun Park, Gab Jung Kim, Eun-Jin Kim, Cheon Kwon Yoo, Myeongsu Yoo, Donghyok Kwon, Sangwon Lee

  Public Health Weekly Report 2021; 14(44): 3098-3100

  

  

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• Epidemiology and Surveillance 2021-10-28

  0 176 120

  Evaluation of effectiveness of mowing works for integrated tick control method

  Chang-Won Jang, Hyunwoo Kim, Gi-Hun Kim, Hee-Il Lee

  Public Health Weekly Report 2021; 14(44): 3103-3110

  

  

  Abstract

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  Sever Fever with Thrombocytopenia Syndrome (SFTS) in humans is a febrile disease that occurs when a virus belonging to Phenuiviridae is transmitted by tick bites. This disease was first reported in China in 2011 and was first reported in Japan and Korea in 2013. There are about 850 species of ticks worldwide, but 37 species belong to 2 families and 7 genera inhabit Korea. Due to the fact that ticks can inhabit and spread over a wide area, the use of insecticides has its limitations. The aim of this study was to determine whether mowing is an effective method for reducing tick abundance in tick infested areas. Four points (10 m × 10 m) were selected in the Cheonan area, a region where SFTS cases were reported and where tick infestation was confirmed. An experiment was carried out in parallel with mowing and acaricide treatment from April to October 2019. To evaluate the effectiveness of mowing, Henderson's equation was applied. The control rate of mowing for 12 days was 44.3%, which was confirmed to be lower than the control rate of acaricides (91.8%, lasting 19 days). This study found that mowing can complement acaricide treatments as a means of effective tick reduction.

• Original Articles 2021-10-28

  0 454 75

  Seroprevalence of Q fever in goat farm workers in the Republic of Korea, 2020

  Juha Song, Ho-Sung Lee, Ji Yeon Lee, Seung Hwan Shin, Geun-Yong Kwon, Miyeon Kim, Byoungchul Gill, Jaeil Yoo

  Public Health Weekly Report 2021; 14(44): 3111-3119

  

  

  Abstract

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  In the Republic of Korea, reports of human Q fever, a bacterial infection with flu-like symptoms which spreads from farm animals to humans and which has long-term health effects, have been increasing since 2015. To investigate the seroprevalence of Q fever in dairy goat farm workers and to identify the risk factors affecting bacterial exposure during work, a total of 118 people working on goat farms in Jellabuk-do and Gyeongsangnam-do were tested for Coxiella burnetii infection using immunofluorescence assay (IFA). In addition, the 118 participants responded to a questionnaire on goat-related tasks, clinical history, individual hygiene, and personal protective equipment. Among the 118 participants, 60 (50.8%) were seropositive (phase Ⅱ IgG >1:128). Among those who tested seropositive, 18 (15.3%) met the diagnostic criteria of acute Q fever (phase Ⅱ IgG >1:128 and phase Ⅰ IgG <1:16), and 44 (37.3%) met the diagnostic criteria for chronic Q fever (phase Ⅰ IgG >1:128). When re-analyzing the results by diagnostic criteria (phase Ⅱ IgM >1:16 or IgG >1:256) before being revised in 2020, the seroprevalence was identified as 39.8% (47/118), which was higher than those of the previous reports in other high-risk groups (butchers 1.2%, dairy farmers 1.4%, veterinarians 4.6%, and animal sanitation laboratory workers 7.9%). The results of this study suggest that continuous investigation and preventative management of farm workers be carried out. This study is also expected to serve as important evidence for implementing policies and education to prevent Q fever infection in farm workers.

• Noncommunicable Disease Statistics 2021-10-28

  0 172 88

  Trends in doctor's diagnosis rate of stroke, 2007-2019

  Public Health Weekly Report 2021; 14(44): 3120-3121

  

  

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