Page 7 - 4th edition Nayi Udaan
P. 7

They say these  shifts  bring      tionately  in the same places      southeast Asia, a global hotspot
        greater    opportunities    for    as human settlements,              of bat diversity.
        viruses like Ebola or corona-      creating new hotspots of spill
        viruses to emerge  in new          over risk.  Much of this           "At every step," said Carlson,
        areas, making them harder to       process  may already be            "our  simulations have taken
        track,  and into new types  of     underway in  today's 1.2           us by surprise. We've spent
        animals, making it easier for      degrees  warmer world, and         years double-checking  those
        viruses to jump across a           efforts  to reduce greenhouse      results, with different  data
        "stepping stone" species into      gas  emissions  may not  stop      and different  assumptions,
        humans.                            these events from unfolding.       but the models always lead us
                                                                              to these  conclusions. It's a
                    “The  closest  analogy  is                                really  stunning  example  of
        actually the risks we see in the   An additional important finding is   just how well we can, actually,
        wildlife  trade,"  says the        the impact rising tempera-         predict the future if we try."
        study's  lead  author  Colin       tures will have on bats, which
        Carlson, PhD, an assistant         account for the  majority of       As viruses start to jump
        research professor at the          novel viral  sharing. Their        between  host species  at
        Center for Global Health           ability to fly will allow them to   unprecedented     rates,   the
        Science and Security at            travel long distances, and         authors say that  the  impacts
        Georgetown  University  Medical                                       on conservation and human
        Center.  "We worry about                                              health could be stunning.
        markets because  bringing
        unhealthy      animals                                                       "This mechanism adds
        together in unnatu-                                                            yet  another layer  to
        ral  combinations                                                                how          climate
        creates                                                                            change        will
        opportunities                                                                        threaten
        for this  step-                                                                       human      and
        wise process                                                                           animal
        of                                                                                     health," says
        emergence                                                                               the study's
        - like how                                                                              co-lead
        SARS                                                                                    a uthor
        j um ped                                                                                Gregory
        from bats                                                                              Albery, PhD,
        to    civets,                                                                          a postdoctoral
        then civets to                                                                        fellow  in  the
        people.    But                                                                       Department  of
        markets                                                                             Biology  in the
        aren't                                                                            Georgetown
        special                                                                         University College
        anymore;                                                                      of Arts and Sciences.
        in a changing climate,                                                    "It's unclear exactly how
        that kind of process will be                                           these  new viruses might
        the reality in  nature just                                           affect  the species  involved,
        about everywhere."                 share the           most           but  it's  likely  that  many of
                                           viruses. Because of their          them  will  translate  to  new
                                           central role in viral              conservation risks  and fuel
            Of concern is that animal      emergence,      the    greatest    the  emergence  of  novel
        habitats will move dispropor-      impacts are projected  in          outbreaks in humans."

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