In Nigeria, health authorities are warning against self-medicating, after two patients overdosed on the anti-malaria drug chloroquine, which President Trump has praised as a possible treatment for coronavirus. Tests are currently being carried out with anti-malarials in the U.S. and other countries, but the FDA and the WHO have not approved its use as a treatment for COVID-19. Back in the U.S., lupus patients have reported shortages of the drug hydroxychloroquine — which is used to treat both malaria and lupus — following Trump’s recent statements.