Masmudur Rahman, assistant professor in the School of Life Sciences and Biodesign Center for Personalized Diagnostics was awarded an R21 award from the NIH.
An R21 award, also known as an exploratory/developmental grant, from the NIH supports exploratory research, encouraging the development of new research activities in categorical program areas.
Rahman’s project, titled “Unravelling the mechanisms of virus host species jump,” uncovers how viruses jump from one species to another is crucial to prevent and respond to disease outbreaks like COVID-19 and monkeypox. This research focuses on the Myxoma virus (MYXV), which originally infected a specific rabbit species without causing harm but became deadly when it spread to European rabbits in the 19th century. In the 1950s, MYXV was intentionally introduced in Australia and Europe to control wild rabbit populations, providing a well-documented example of how viruses and their hosts evolve together.
In 2018, a new version of MYXV, called MYXV-Tol, was discovered in Iberian hares in Spain, causing a deadly disease in hares and spreading to wild rabbits. This new strain has unique genetic changes, including an inserted set of genes and disrupted ones, which may explain why it is so lethal in hares. Researchers have identified a specific gene, M159-Tol, that is essential for the virus to infect hare cells but found that it plays little role in the disease's progression in rabbits. This suggests the virus has adapted to infect hares but behaves differently in rabbits.
This study aims to explore how MYXV-Tol causes severe disease in rabbits and pinpoint the genetic changes responsible. Understanding these mechanisms will help scientists predict and control how viruses evolve to infect new species and cause outbreaks in the future.