The Indonesian Red Cross warned today that the country is on the edge of a COVID-19 catastrophe, with a surge of Delta variant-fueled infections overwhelming hospitals in Jakarta and other parts of the country.In other international developments, Africa's COVID-19 cases rose again for the seventh week in a row, and deaths in Brazil—which has endured many months of high virus activity—crossed the 500,000 mark.Indonesia struggling with oxygen suppliesIn a statement today, the Indonesian Red Cross said less than 5% of the country's adult population is vaccinated, and it needs 360 million doses to immunize at least 70% of the population.