Fig 1.
Viral interactions during an infectious cycle.
(A) The mechanism implicated in negative interactions during a viral coinfection that can be defined as 1- Competition for receptors; 2- Competition for cellular resources; 3- Competition by viral proteins; 4- Host response induced by one virus. (B) The mechanism implicated in positive interaction during a viral coinfection that can be defined as 1- Increased receptor expression; 2- Formation of hybrid viral particles; 3- Syncytia formation facilitating viral spread and increase the replication of another virus. Created with Biorender.