Trends of measles in Tanzania: A 5-year review of case-based surveillance data, 2018-2022
| dc.contributor.author | Kalabamu,Florence S. | |
| dc.date.accessioned | 2025-03-27T13:11:49Z | |
| dc.date.available | 2025-03-27T13:11:49Z | |
| dc.date.issued | 2024-02 | |
| dc.description.abstract | Objectives: Tanzania observed a gradual increase in the number of measles cases since 2019 with a large outbreak recorded during 2022. This study describes the trend of measles in Tanzania over a 5-year pe- riod from 2018-2022. Methods: This was a descriptive study conducted using routine measles case-based surveillance system including 195 councils of the United Republic of Tanzania. Results: Between 2018 and 2022 there were 12,253 measles cases reported. Out of 10,691 (87.25%) sam- ples tested by enzyme-linked immunosorbent assay, 903 (8.4%) were measles immunoglobulin M posi- tive. The highest number of laboratory-confirmed measles cases was in 2022 (64.8%), followed by 2020 (13.8%), and 2019 (13.5%). Out of 1279 unvaccinated cases, 213 (16.7%) were laboratory-confirmed measles cases compared to 77/723 (10.6%) who were partially vaccinated and 71/1121 (6.3%) who were fully vac- cinated (P < 0.001). Children aged between 1-4 years constituted the most confirmed measles cases after laboratory testing, followed by those aged 5-9 years. There was a notable increase in the number of laboratory-confirmed measles cases in children <1 year and 10-14 years during 2022 compared to pre- vious years. The vaccination coverage of the first dose of measles-containing vaccine (MCV1) was main- tained >90% since 2013 while MCV2 increased gradually reaching 88% in 2022. | |
| dc.identifier.citation | Michael, F., Mirambo, M.M., Misinzo, G., Minzi, O., Beyanga, M., Mujuni, D., Kalabamu, F.S., Nyanda, E.N., Mwanyika-Sando, M., Ndiyo, D. and Kasonogo, R., 2024. Trends of measles in Tanzania: A 5-year review of case-based surveillance data, 2018-2022. International Journal of Infectious Diseases, 139, pp.176-182. | |
| dc.identifier.other | https://doi.org/10.1016/j.ijid.2023.12.007 | |
| dc.identifier.uri | http://kuir.ku.ac.tz:4000/handle/123456789/1488 | |
| dc.language.iso | en | |
| dc.publisher | International Journal of Infectious Diseases | |
| dc.subject | Measles | |
| dc.subject | Outbreaks | |
| dc.subject | Tanzania | |
| dc.title | Trends of measles in Tanzania: A 5-year review of case-based surveillance data, 2018-2022 | |
| dc.type | Article |