UGANDA – Uganda is set to introduce the yellow fever vaccine to children aged 9 months, as part of its commitment to the EYE Strategy, with a vaccine introduction grant (VIG) from Gavi.

All children will be vaccinated with both yellow fever and measles-rubella vaccines.

In 2022, Uganda was one of 14 countries in Africa reporting confirmed cases of yellow fever.

With the support of the Eliminate Yellow fever Epidemics (EYE) Strategy and its key partners, including the World Health Organization, UNICEF and Gavi, the Vaccine Alliance, a multi-country outbreak response was organized in neighbouring countries that faced more serious yellow fever transmission.

During the Integrated Child Health Days (ICHD) activities in October 2022, despite the ongoing Ebola Virus Disease outbreak having been declared the month before, Uganda maintained its plans to introduce the yellow fever vaccine into its routine immunization programme.

The EYE Strategy is a multi-stakeholder partnership that provides support to high-risk countries on how to minimize and eventually end the threat of yellow fever epidemics.

“Uganda is committed to controlling yellow fever transmission,” said Dr Jane Ruth Aceng Ocero, Uganda’s Minister of Health.

“We want to ensure that our people are protected against this high-threat disease, and vaccines remain the main tool we have to efficiently prevent and contain yellow fever outbreaks.”

Uganda is a high-risk country for yellow fever transmission due to less than 10 per cent of the population being immunized against it, with sporadic outbreaks occurring every 3 to 5 years.

The recent confirmed cases have been reported from near urban areas, such as Kampala. Around 24 per cent of Ugandans (approximately 44 million in total), live in urban areas with roughly half of those living in slums.

Urban outbreaks of yellow fever in densely populated areas with low population immunity and often with poor sanitation, can have catastrophic consequences.

“We applaud Uganda for taking such an important step towards immunization against yellow fever,” said Dr Yonas Tegegn Woldemariam, WHO Representative in Uganda.

“Vaccination is the single most important measure for preventing yellow fever, and the prevention of outbreaks can only be achieved if the majority of the population is immunized.”

In addition to the success of the roll-out of yellow fever vaccine into its routine immunization schedule, Uganda will start the implementation of a phased preventive mass vaccination campaign (PMVC) by administering 13 million vaccine doses in 2023, for which Gavi has provided funding through a campaign operations grant. This will target areas deemed most vulnerable to outbreaks.

Yellow fever is transmitted by the Aedes Aegypti or Haemagogus mosquito species and outbreaks in Uganda originate mainly from sylvatic, or jungle, transmission.

Mosquitoes acquire the virus by feeding on infected primates and then bite humans during agricultural and other activities in forested areas.

Humans can then carry the virus to other areas, including urban centres, where it is spread by mosquitoes from human to human.

Yellow fever infections can cause serious illness and, in up to 30–60 per cent of severe cases, death. There are no specific therapeutics to treat the disease, but early supportive care increases survival rates.

Crucially, there is a vaccine against yellow fever, and it is safe, highly effective and only a single dose is needed for life-long protection.

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