There are four known<unk>  genotypes of this virus: type 1 to 4. Types 1 and 2 appear to have diverged recently (circa 1985) The estimated mean evolutionary rate is 8.6 substitutions/site/year. The 1st + 2nd codon positions evolve 15 times more slowly than those of the 3rd codon position. There is 78%, 67%, and 80% identity between<unk>  1 and 2 NS1, NP1, and VP1/VP2 proteins respectively. Recombination may occur between strains.<unk>  3 appears to be a recombinant of<unk>  1 and<unk>  2 and 4.<unk> es have been isolated from pigs. Phylogenetic analysis of swine<unk>  places it with canine minute virus. Incomplete sequences of<unk> es have been obtained from wild chimpanzees. These sequences phylogenetically lie within the known<unk>  isolates but also show evidence of recombination.
Human bocavirus
Hendra virus
Seoul orthohantavirus
Prospect Hill orthohantavirus
Caño Delgadito orthohantavirus
Limestone Canyon virus
New York orthohantavirus
Measles morbillivirus