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Tracing the Ebola Outbreak, Scientists Hunt a Silent Epidemic

Tracing the Ebola Outbreak, Scientists Hunt a Silent Epidemic

Scientists are using blood samples collected throughout the Ebola outbreak to map the virus’s spread from country to country by tracking tiny mutations in its gene sequences.

The picture is not yet complete, but intriguing discoveries have been made. Virus mutations first detected in Sierra Leone last spring were found later in Liberia and Mali, and scientists are examining whether this resulted from the chance movements of people across borders.

While some scientists think it is unlikely that the mutations made a difference in how the virus functioned, others are looking at whether this version of the virus had properties that made it more capable of causing infection.

Scientists look for viral mutations because of their potential influence on the effectiveness of diagnostics or treatments. Researchers have changed Ebola diagnostic tests and experimental treatments based on information about how the virus has evolved from previous outbreaks to the one in West Africa.

Read More:Tracing the Ebola Outbreak, Scientists Hunt a Silent Epidemic – NYTimes.com.

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