'widespread virus' is a correct and usable phrase in written English.
You can use it to refer to a virus that has spread over a large area or population. For example: "The pandemic has resulted in a widespread virus, with millions of people infected around the world."
Thirty-six states reported widespread virus activity, 22 of them experiencing high infection rates and nine reporting deaths.
A widespread virus, "Taiwan Fever", has crippled the city, reducing its victims into exhibiting unusual, cockroach-like behavior.
The map, from the Centers for Disease Control and Prevention, shows that it is a particularly wicked and widespread virus.
Bird, B. H., Khristova, M. L., Rollin, P. E., Ksiazek, T. G. & Nichol, S. T. Complete genome analysis of 33 ecologically and biologically diverse Rift Valley fever virus strains reveals widespread virus movement and low genetic diversity due to recent common ancestry.
The greater the delay between illness onset in the index case, and the initiation of response activities, the more widespread virus circulation is likely to be.
AFP performance surveillance indicators for Madura prior to the recognition of the cVDPV outbreak were low, consistent with poor case identification and the potential for widespread virus circulation.
Mizuno, C. M., Ghai, R., Saghaï, A., López-García, P. & Rodriguez-Valera, F. Genomes of abundant and widespread viruses from the deep ocean.
For instance, metagenomic strategies based on capturing viral genomes in fosmids have broaden our knowledge on abundant and widespread viruses in surface waters10 and in the deep Mediterranean Sea11.
The report confirms that countries that had a widespread Zika virus outbreak should expect a significant increase in congenital birth defects, especially the neurological ones associated with Zika virus congenital syndrome.
Widespread intratumoral virus distribution with fractionated injection enables local control of large human rhabdomyosarcoma xenografts by oncolytic herpes simplex viruses.
*How widespread the virus may be in wild or farmed animals.
