Hospitals in Brazil’s main cities are reaching capacity, health officials have warned, as the country recorded the world’s highest COVID-19 death toll over the past week, triggering tighter restrictions on Thursday in its most populous state. Intensive care wards for treating COVID-19 patients have reached critical occupancy levels over 90% in 15 of 27 state capitals, according to biomedical center Fiocruz. In Porto Alegre, the largest city in southern Brazil, there are no free intensive care units (ICUs), and occupancy has also hit 100% in two other state capitals, Fiocruz reported. The Health Ministry on Wednesday reported a record 2,286 deaths from COVID-19 in the last 24 hours, as new infections rose by 79,876. With more than 270,000 deaths, Brazil’s pandemic death toll over the past y...