A report on the origins of Covid-19 by a US government national laboratory concluded that the hypothesis claiming the virus leaked from a Chinese lab in Wuhan is plausible and deserves further investigation, according to a report.The study was prepared in May 2020 by the Lawrence Livermore National Laboratory in California and was referred by the State Department when it conducted an inquiry into the pandemic’s origins during the final months of the Trump administration, the The Wall Street Journal reported. Lawrence Livermore’s assessment drew on genomic analysis of the Covid-19 virus, the newspaper said. The laboratory declined to comment on the report. President Joe Biden said last month he had ordered aides to find answers to the origin of the virus.US intelligence agencies are considering two likely scenarios – that the virus resulted from a laboratory accident or that it emerged from human contact with an infected animal – but they have not come to a conclusion, Mr Biden said.