Genotype I, the penultimate HBV genotype to date, was granted the status of a bona fide genotype only in the XXIst century after some hesitations.The reason for these hesitations was simply southern cat shirt that genotype I is a complex recombinant virus formed with segments from three original genotypes, A, C, and G.It was estimated that genotype I is responsible for only an infinitesimal fraction (2 spreading from Eastern India to China, inhabited by a little more than 100 million persons belonging primarily to ethnic minorities speaking various types of languages (Tibeto-Burman, Austroasiatic, and Tai-Kadai) who managed to escape the authority of central states during historical times.
Genotype I consists of two subtypes: luau thank you cards I1, present in China, Laos, Thailand, and Vietnam; and I2, encountered in India, Laos, and Vietnam.