Table 2

Summary of transmission routes

Type of transmission (1 h)Characteristics
MinglingDonor and recipient mice were able to freely touch and interact with no restriction in movement; potential for coprophagy
ContactDonor and recipient mice were separated by a single porous barrier and were able to touch each other; no potential for coprophagy
AirborneDonor and recipient mice were separated by a double porous barrier and were unable to touch each other; no potential for coprophagy
EnvironmentalRecipient mice were housed in a contaminated donor cage, which had been left for 24 h under ambient oxygen conditions. Donor feces were removed to prevent transmission via coprophagy