台灣屠宰場勞工豬鏈球菌盛行率之調查

A Survey of the Prevalence of Swine Streptococcus on Abattoir Workers in Taiwan

熊映美(Yin-Mei Chiung) ； 張靖男(Ching-Nan Chang) ； 沈詠梅(Yong-Mei Shen) ； 熊家媛(Chia-Yuan Hsiung) ； 廖朝政(Liau-Tsau Zen) ； 林昌棋(Chan-Chi Lin)

《勞工安全衛生研究季刊》 17卷3期 (2009/09) Pp. 353-364

https://doi.org/10.7005/JOSH.200909.0353

摘要

Streptococcus is important in the zoonoses. It may cause pneumonia, polyserositis, meningitis, abscessation, cellulitis and valvular endocarditis. Workers of animal industry may be exposed to zoonic pathogens when expose to the animal bodies as suspective carriers.
A survey of streptococcal exposure was studied within 2001, in the abattoir workers in Taiwan. The basic information, including work history, exposed factors and the doubtful symptom were obtained by questionnaire. High-risk workers might be respected by analyzing the relationships of the results of examination and work types, trials from questionnaires etc. Streptococcus suis was used as the test strain. Exposure conditions were evaluated by serum titers and carrier state of workers were examined by swabbing the throat and skin. Groups of Streptococcus were swabbed in 24 hrs and examined by cultures on blood agar plates. The percentage was calculated by the colonies which were judged by the morphological characteristics and hemolytic properties after incubation.
Overall, surveys of 4 abattoirs were in similar sanitary operation procedures. It shows that the number of colonies of Streptococcus suis counted from the fallen bacteria in the abattoir area is higher than the office area. In total, there are 118 workers with complete questionnaires, blood sample and swab samples. Among 76 workers in the exposed group, and 42 of the non-exposed group, high incidences of cellulitis and valvular endocarditis, were 1.7% (2) and 6.8% (8), respectively. No statistical significance in data from questionnaires was shown between the susceptive syndromes and carrier state. The results indicate that the cough and phlegm are related with the oral S. suis (p＜0.05).
Additionally, it shows 99.2% (117) positive rate in antibody test. A higher carrier rate was observed in exposed group both on the hand surface and oral swab, as 60.4±17.6 and 67.5±16.9 (%) in percentage, otherwise, of the unexposed group as 0.5±1.4 and 1.1±2.4 (%), respectively. It shows a significant difference in the result of oral swab (p=0.033, ANOVA). Furthermore, from the results of work jobs, it suggest that contact to the internal organs of pig might be a high risk factor (p=0.052, ANOVA).
In conclusion, workers in slaughter house have been exposed to swine Streptococcus, and a part of them were possibly infected.

關鍵字

人畜共染疾病 ； 豬鏈球菌 ； 屠宰業勞工 ； 職業病

並列摘要

Streptococcus is important in the zoonoses. It may cause pneumonia, polyserositis, meningitis, abscessation, cellulitis and valvular endocarditis. Workers of animal industry may be exposed to zoonic pathogens when expose to the animal bodies as suspective carriers.
A survey of streptococcal exposure was studied within 2001, in the abattoir workers in Taiwan. The basic information, including work history, exposed factors and the doubtful symptom were obtained by questionnaire. High-risk workers might be respected by analyzing the relationships of the results of examination and work types, trials from questionnaires etc. Streptococcus suis was used as the test strain. Exposure conditions were evaluated by serum titers and carrier state of workers were examined by swabbing the throat and skin. Groups of Streptococcus were swabbed in 24 hrs and examined by cultures on blood agar plates. The percentage was calculated by the colonies which were judged by the morphological characteristics and hemolytic properties after incubation.
Overall, surveys of 4 abattoirs were in similar sanitary operation procedures. It shows that the number of colonies of Streptococcus suis counted from the fallen bacteria in the abattoir area is higher than the office area. In total, there are 118 workers with complete questionnaires, blood sample and swab samples. Among 76 workers in the exposed group, and 42 of the non-exposed group, high incidences of cellulitis and valvular endocarditis, were 1.7% (2) and 6.8% (8), respectively. No statistical significance in data from questionnaires was shown between the susceptive syndromes and carrier state. The results indicate that the cough and phlegm are related with the oral S. suis (p＜0.05).
Additionally, it shows 99.2% (117) positive rate in antibody test. A higher carrier rate was observed in exposed group both on the hand surface and oral swab, as 60.4±17.6 and 67.5±16.9 (%) in percentage, otherwise, of the unexposed group as 0.5±1.4 and 1.1±2.4 (%), respectively. It shows a significant difference in the result of oral swab (p=0.033, ANOVA). Furthermore, from the results of work jobs, it suggest that contact to the internal organs of pig might be a high risk factor (p=0.052, ANOVA).
In conclusion, workers in slaughter house have been exposed to swine Streptococcus, and a part of them were possibly infected.

並列關鍵字

Zoonensis ； Streptococcus suis ； Occupational disease ； Abattoir workers

參考文獻

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