As the World Health Organization suggests that finding the animal source of COVID-19 may take quite a while just as previous investigations regarding the animal sources of MERS and SARS have. In Brazil, a team of researchers are investigating other coronaviruses in wildlife and even in domestic animals to understand how the virus jumped from an intermediary host to humans. Let's follow a team of "virus hunters" from Brazil's renowned Oswaldo Cruz Foundation or Fiocruz, the country's reference center for COVID-19, to understand how the research works.

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