Changes

#[[Mammalian Type D retrovirus]]

#[[Mammalian Type D retrovirus]]

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#

#Avian Type C retrovirus

#[[Avian Type C retrovirus]]

#*[[Avian Leukosis Virus]]

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#Spumavirus

#Spumavirus

#*Feline and bovine syncitial viruses (common, nonpathogenic)

#*Feline and bovine syncitial viruses (common, nonpathogenic)