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Hepatitis B virus in Lao dentists: A cross-sectional serological study
Bouasone Mangkara1, Kinnaly Xaydalasouk2, Phetsavanh Chanthavilay3
1Lao Tropical and Public Health Institute, Ministry of Health, Vientiane, Lao People's Democratic Republic.
Annals of Hepatology
|November 20, 2020
Summary
Lao dentists face high Hepatitis B virus (HBV) risk with low vaccination rates and awareness. Mandatory vaccination and improved occupational health are crucial for protecting dental professionals and patients from HBV infection.
Area of Science:
- Hepatology
- Infectious Diseases
- Occupational Health
Background:
- Hepatitis B virus (HBV) infection is a significant public health concern in Lao PDR, with high endemicity in the adult population.
- Dental professionals are at an elevated risk for occupational exposure and potential transmission of HBV to patients.
Purpose of the Study:
- To investigate the serological profiles of vaccination, exposure, and susceptibility to HBV among dentists in Lao PDR.
- To assess the knowledge, attitude, and practice (KAP) of Lao dentists regarding HBV.
Main Methods:
- A cross-sectional study involving dentists and dental assistants from private clinics in Vientiane Capital.
- Completion of a KAP questionnaire and serological testing for HBV markers using ELISA.
Main Results:
- A significant proportion of participants (37.8%) showed evidence of previous HBV exposure, and 5.0% were chronically infected.
- Less than 15% had serological evidence of vaccination, leaving 66.8% unprotected against HBV infection.
- Low awareness of HBV, including the childhood vaccine, and insufficient knowledge of post-exposure procedures were noted.
Conclusions:
- Lao dentists exhibit high occupational risk for HBV exposure coupled with low serological protection and awareness.
- There is an urgent need for mandatory HBV vaccination policies, enhanced occupational health measures for healthcare providers, and improved dental academic curricula.
