An outbreak investigation of mumps in a primary school in Sahatsakhan District, Kalasin Province, February–April 2018

Abstract

The objective of investigation of outbreak investigation of mumps in a primary school in Sahatsakhan District, Kalasin Province was to confirm the outbreak of disease, describe the distribution of disease by time, place and person, to find the cause of epidemic infections, to evaluation the effectiveness of the measles, mumps and rubella vaccine (MMR). And control and prevent from further disease spreading. We conducted descriptive epidemiological study, analytical Retrospective cohort study, laboratory study, environmental study and effectiveness of the MMR vaccine.

The investigation found 66 patients, 1 confirmed case and 65 suspected case. The most common symptoms were swollen salivary glands (100.00%), followed by were fatigue, fever and sore throat respectively (98.48%, 93.94% and 84.85 respectively) found in males more than females, the epidemic curve of the outbreak is common sources. The risk factors for the outbreak are the sharing of water glasses. OR_Adj. = 77.73 (95% CI = 22.36 - 270.19), not receiving 2 MMR vaccines. OR_Adj. = 20.63 (95% CI = 4.04 - 105.35). exposure to secretions of patients OR_Adj. = 20.37 (95% CI = 3.24 - 128.29), kindergarten and primary class OR_Adj. = 7.71 (95% CI = 2.41 - 24.65) and sharing items with the patient OR_Adj. = 1.51 ( 95% CI = 0.56 - 4.07) with statistically significant The evaluation of the effectiveness of the total measles, rubella (MMR) vaccine was 91.00.

Team conducted the control measure and disease prevention by allowing patients to stop studying and avoid sharing a glass of water. Surveillance of diseases for 42 days. No new cases were found.