First, he stood up to John Oliver in defense of his hometown of Danbury. Now, 8-year-old Caio P. Leaf is standing up to COVID-19 in a new Connecticut public service announcement.  Released on September 16, the PSA, which is spoken in Portuguese, urges Connecticut residents to take basic safety precautions against the virus.  Leaf, who is half Brazilian, is featured with his grandparents in the PSA. The trio appear throughout the commercial and at the end, say that they're 