Measles challenges: global resurgence and factors affecting eradication

Area of Science:

• * Public Health & Epidemiology
• * Infectious Disease Research
• * Immunology

Background:

• * Measles is a highly contagious viral infection with significant public health implications.
• * Recent global outbreaks highlight the ease of measles virus re-emergence, even in previously eliminated regions.
• * Measles infection can compromise existing immune memory, increasing susceptibility to other pathogens.

Purpose of the Study:

• * To provide an outlook on the current epidemiology of measles.
• * To identify and discuss challenges hindering global measles eradication efforts.
• * To integrate evidence on measles resurgence factors into a comprehensive framework.

Main Methods:

• * Review of current literature on measles epidemiology and resurgence.
• * Analysis of factors contributing to measles outbreaks.
• * Integration of health system, epidemiological, immunological, and sociopolitical factors.

Main Results:

• * Measles resurgence is driven by multifactorial issues including suboptimal vaccine coverage, vaccine failure, and diagnostic challenges.
• * Diminished herd immunity and an aging susceptible population profile exacerbate outbreak risks.
• * Sociopolitical instability, conflict, and displacement significantly contribute to outbreak propagation.

Conclusions:

• * Addressing measles resurgence requires a comprehensive approach tackling vaccination barriers and healthcare access.
• * Improved diagnostics and strengthened public health infrastructure are essential for containment.
• * Global efforts must consider sociopolitical contexts to achieve measles eradication.