Mass Polio Vaccination Effort Underway in East Africa

Malawi and its neighbors plan to vaccinate 9.4 million children against polio in the coming week to combat a suspected outbreak.

Written byNatalia Mesa, PhD
| 4 min read
Child with head tilted back receiving droplets of oral polio vaccine into her mouth
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Update (May 18): Health officials in Mozambique have declared a polio outbreak after confirming a case in the country's northeastern Tete province. Viral sequencing information indicates that the virus circulating in Mozambique is closely related to the poliovirus circulating in Pakistan as recently as 2019.

On Monday (March 21), the East African nation of Malawi will launch the first of four rounds of a large-scale polio vaccination campaign in an effort to stop the devastating virus from spreading further, according to STAT.

In February, a 4-year-old girl who lives outside of the country’s capital, Lilongwe, was diagnosed with type 1 polio and became paralyzed as a result of her infection. The case was the country’s first in three decades and the first on the continent since 2020. According to STAT, the poliovirus likely made its way into Malawi from Pakistan, one of only two countries where polio is still endemic. ...

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    As she was completing her graduate thesis on the neuroscience of vision, Natalia found that she loved to talk to other people about how science impacts them. This passion led Natalia to take up writing and science communication, and she has contributed to outlets including Scientific American and the Broad Institute. Natalia completed her PhD in neuroscience at the University of Washington and graduated from Cornell University with a bachelor’s degree in biological sciences. She was previously an intern at The Scientist, and currently freelances from her home in Seattle. 

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