DOI: 10.1590/0102-311x00164820
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Abstract: On March 11, 2020, the World Health Organization (WHO) declared COVID-19 a global pandemic. Since the disease only emerged recently, numerous questions remain to be answered. For example, there are still many doubts concerning the potential for transmission by asymptomatic and pre-symptomatic carriers, thus far there is no provenly effective specific treatment, and it is not known whether acquired immunity after the infection exists or how long it lasts. Measures to reduce transmission are recommended, such as…

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