• spread
  • Plants have specialized mechanisms for transporting mRNAs through plasmodesmata, and these mechanisms are thought to be used by RNA viruses to spread from one cell to another. (wikipedia.org)
  • ro͞obē`ələ) , highly contagious disease of young children, caused by a filterable virus and spread by droplet spray from the nose, mouth, and throat of individuals in the infective stage. (thefreedictionary.com)
  • It is caused by a filterable virus that is spread by droplet spray from the respiratory tract of an infected individual. (thefreedictionary.com)