Study suggests bats are an underrecognized arenavirus reservoir CDCgov ChariteBerlin FU_Berlin HumboldtUni bats virus virology arenavirus animals wildlife
By Dr. Chinta SidharthanNov 21 2022Reviewed by Danielle Ellis, B.Sc. In a recent study published in the US Centers for Disease Control and Prevention’s journal Emerging Infectious Diseases, a team of researchers reported the detection of arenavirus ribonucleic acid from various species of bats sampled between 2007 and 2011 from Brazil.
However, since Tacaribe virus belongs to the same clade as the hemorrhagic fever-causing viruses that also exhibit immune evasion and cellular tropism, the possibility of severe infections from Tacaribe virus cannot be ruled out. Results The results reported arenavirus RNA from 1.62% of the sampled bats belonging to three species — one Artibeus planirostris, four Artibeus lituratus, and 12 Carollia perspicillata. The viruses from the two Artibeus species were identified as Tacaribe mammarenavirus, while the virus detected in the 12 Carollia perspicillata samples was identified as a novel species, which the authors called Tietê mammarenavirus.
The maximum likelihood tree using the complete large segment genes retrieved the whole clade containing the Tacaribe virus and sequences from Brazil as sister to the Junin and Machupo New World arenaviruses. The taxonomic assessment of the new virus species from the Carollia perspicillata samples was based on pairwise sequence comparisons with Tacaribe virus that indicated a nucleotide sequence identity of less than 80% and a nucleocapsid protein amino acid identity of 88.6% to 90% and the presence of a distinct host. The species was named after a river located near the sampling site.
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