He began the 12-month process of withdrawing from the organisation last July - a policy immediately reversed by his successor Joe Biden in January. Democratic Senator Mark Warner, the committee's chairman, said he was 'dismayed' there had been no hearing last year. In the case of Severe Acute Respiratory Syndrome (SARS)  a disease caused by a beta coronavirus, like the current coronavirus  researchers first identified the virus in February 2003. Questions of origins and questions of disease control are not the same thing once human-to-human transmission has become common, said Deborah Seligsohn, an expert in environment and public health at Villanova University. The report says the virus likely jumped from animals but leaves numerous questions unanswered, such as which animal was the suspected link between bats and humans - with mink, pangolins, rabbits and ferret badgers all named as suspects.
In January 2003, the three branches of explained disease control had already been linked to the SARS cases.
( z0 link :ARG1 ( z1 branch :quant 3 :part-of ( z2 control :ARG1 ( z3 disease ) :ARG1-of ( z4 explain ) ) ) :ARG2 ( z5 case :ARG1 ( z6 disease :name ( z7 name :op "SARS" ) ) ) :time ( z8 already ) :time ( z9 date-entity :month 1 :year 2003 ) )
(z0 / link-01
    :ARG1 (z1 / branch
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    :ARG2 (z5 / case-04
              :ARG1 (z6 / disease
                        :name (z7 / name
                                  :op1 "SARS")))
    :time (z8 / already)
    :time (z9 / date-entity
              :month 1
              :year 2003))
In January 2003 , the three branches of explained disease control had already been linked to the SARS cases .
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