evidence: During the press conference, a speaker who identifies herself as a doctor makes a number of dubious claims, including that "you don’t need masks" to prevent spread of the coronavirus, and that recent studies showing hydroxychloroquine is ineffective for the treatment of Covid-19 are "fake science" sponsored by "fake pharma companies." "This virus has a cure, it’s called hydroxychloroquine, zinc, and Zithromax," the woman claims. [...] A study found that neither hydroxychloroquine alone nor hydroxychloroquine plus azithromycin appeared to affect the condition of patients at the 15-day mark. Additionally, unusual heart rhythms and elevated liver-enzyme levels were more frequent in patients receiving hydroxychloroquine alone or with azithromycin, according to the study.