News Health & Medicine

DNA tests of Lassa virus mid-outbreak helped Nigeria target its response

Analysis of genetic data in the field eased worries that a more transmissible strain had arisen

Lassa virus

PATHOGEN PROBLEM  Lassa virus (shown in this transmission electron micrograph) caused a bigger-than-usual outbreak in Nigeria in 2018. Analyzing viral DNA in the field helped public health officials figure out why.

Ami Images/Science Source

By Laurel Hamers

- More than 2 years ago

When an outbreak of a viral hemorrhagic fever hit Nigeria in 2018, scientists were ready: They were already in the country testing new disease-tracking technology, and within weeks managed to steer health workers toward the most appropriate response.