Measles trend in Gabon: Insight from 18 years of surveillance data
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View abstract on PubMed
Summary
This summary is machine-generated.Measles elimination efforts are challenged by low vaccination rates. Unvaccinated individuals are significantly more likely to contract measles, particularly young children, hindering disease control.
Area Of Science
- Epidemiology
- Immunology
- Public Health
Background
- Measles is a highly contagious, vaccine-preventable viral illness.
- Delayed implementation of the World Health Organization's two-dose measles-containing vaccine (MCV1 and MCV2) schedule and persistent immunity gaps impede measles elimination goals.
- Measles outbreaks pose significant risks of severe illness and mortality.
Purpose Of The Study
- To analyze measles surveillance data in Gabon from 2006-2023.
- To determine the impact of vaccination status on measles infection rates.
- To identify key demographic groups affected by measles and assess challenges to elimination.
Main Methods
- Analysis of 18 years of surveillance data (2006-2023) from the Gabon measles surveillance program.
- Inclusion of variables such as age, sex, vaccination status and date, disease date, and anti-measles immunoglobulin M (IgM) status.
- Calculation of infection rates and association studies using immunoassay results.
Main Results
- 60.6% of suspected measles cases were unvaccinated.
- 26.1% of suspected cases were laboratory-confirmed.
- Unvaccinated individuals showed a 5.9-7.7 times higher likelihood of being anti-measles IgM positive (p < 0.0001).
- Children aged 5 years or younger accounted for 70.8% of laboratory-confirmed cases.
- 15.5% of childbearing-age females were confirmed measles cases.
Conclusions
- Non-immunized and under-immunized populations are the primary drivers of measles transmission in Gabon.
- Low vaccination coverage presents a significant obstacle to achieving measles elimination in the region.
- Targeted vaccination strategies are crucial for controlling measles outbreaks and protecting vulnerable populations.
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