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As anew coronavirus spread in Chinaand around the public , scientist are scrambling to see out exactly where it came from . Now , a new study provides more clues to the computer virus ' origins , and points to bats as the most potential hosts .
In the written report , publish today ( Jan. 29 ) in the journalThe Lancet , the investigator take apart 10 genome sequences of the new coronavirus , dubbed 2019 - nCoV , obtained from nine patients inChinawho were sick with the computer virus .
They feel that all 10 of the genome sequences were passing like — they share more than 99.98 % of the same hereditary sequence , the author said . This suggests the computer virus made its " startle " to humans very late , because if that jump had chance long ago , the virus sequences would have differ more , given the degraded rate at which viruses tend to mutate and evolve .
" It is strike that the successiveness of 2019 - nCoV account here from different patients were almost identical , " study co - lead writer Weifeng Shi , a prof at the Key Laboratory of Etiology and Epidemiology of emerge infective Diseases in Universities of Shandong Province , affiliated with Shandong First Medical University , aver in a statement . " This finding suggests that 2019 - nCoV develop from one source within a very short geological period and was find relatively rapidly . "
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Despite emerge in humans only recently , the virus has already infected about 6,000 mass and have 132 deaths in China , while spreading to 15 other countries , according to the World Health Organization . Most of the initial cases occur in citizenry who make at or visited the Huanan seafood market place in Wuhan , China , where a mixture of hazardous brute were sell .
To learn more about the virus ' origins , the researchers compare the 2019 - nCoV inherited episode with those in a library of viral sequence , and institute that the most tight relatedviruseswere two coronaviruses that originated in bats ; both of those coronaviruses partake in 88 % of their genetic chronological succession with that of 2019 - nCoV. ( When compared with two other coronaviruses get laid to taint the great unwashed — SARS andMERS — 2019 - nCoV partake about 79 % of its transmitted sequence with SARS and 50 % with MERS . )
found on these results , the authors say the 2019 - nCoV likely originate inbats . However , no squash racquet were sold at the Huanan seafood marketplace , which suggests that another yet - to - be - identified animate being acted as a steppingstone of sort to transmit the computer virus to humans .
" It seems probable that another animal host is pretend as an intermediate host between bats and humans , " said bailiwick co - lead writer Guizhen Wu , of the Chinese Center for Disease Control and Prevention .
Overall , the outbreak of 2019 - nCoV " again highlights the hidden virus reservoir in wild creature and their potential to occasionally run out over into human population , " the generator publish .
A previous written report suggestedsnakes , which were sold at the Huanan seafood securities industry , as a possiblesource of 2019 - nCoV. However , some experts have criticize the bailiwick , articulate it ’s unreadable if coronaviruses can taint serpent .
in the beginning published onLive Science .
