Brazil’s virus outlook darkens amid vaccine supply snags

Mobile Emergency Care Service (SAMU) workers Gabrielle Carlos, top, and Joao Vericimo, move a COVID-19 patient to an ambulance as he is transferred to a municipal hospital dedicated to COVID-19 in Duque de Caxias, Rio de Janeiro state, Brazil on Tuesday, April 6, 2021. (AP Photo/Felipe Dana)

RIO DE JANEIRO — April is shaping up to be Brazil’s darkest month yet in the pandemic, with hospitals struggling with a crush of patients, deaths on track for record highs and few signs of a reprieve from a troubled vaccination program in Latin America’s largest nation.