What Does the Future Hold for Yellow Fever Virus? (I)

Area of Science:

• Arbovirology
• Epidemiology
• Public Health

Background:

• Yellow fever virus (YFV) activity has resurged in Africa and South America.
• YFV has historically caused devastating epidemics, controlled by vector identification and vaccination.
• Despite control efforts, YFV persists in sylvatic cycles, posing ongoing risks.

Purpose of the Study:

• To review current knowledge on YFV molecular biology and transmission dynamics.
• To assess the risk of urban YFV outbreaks and international spread.
• To provide an overview of disease management tools.

Main Methods:

• Literature review of YFV molecular biology.
• Analysis of YFV transmission dynamics and epidemiology.
• Overview of YFV surveillance and control strategies.

Main Results:

• Recent outbreaks in Central Africa and Brazil highlight YFV's potential for large-scale epidemics and international spread.
• Gaps in knowledge regarding YFV transmission dynamics and host-vector interactions persist.
• Effective vector control and vaccination remain critical for YFV management.

Conclusions:

• Continued vigilance and research are necessary to address the evolving threat of YFV.
• Integrated strategies encompassing molecular understanding, transmission dynamics, and robust control measures are essential.
• Preventing urban outbreaks and international dissemination of YFV requires global cooperation.