| | SATARA, India (Reuters) - At least 24 COVID-19 patients in western India died on Wednesday when the oxygen supply to their ventilators ran out, amid a nationwide shortage of the gas and a surge in infections. | | | South African researchers hope to next week resume a study using Johnson & Johnson's (JNJ.N) COVID-19 vaccine to immunise healthcare workers, one of the scientists leading the programme said on Wednesday. | | | The Serum Institute of India will be able to raise its monthly output of the AstraZeneca COVID-19 vaccine to 100 million doses by July from 60-70 million now, later than a previous timeline of end-May, its chief executive Adar Poonawalla told CNBC-TV18. | | | Argentina is facing its "worst moment" of the COVID-19 pandemic, the country's health minister said on Wednesday, as deaths from the virus neared 60,000 amid a sharp second wave that has forced the country to re-impose some lockdown measures. | | | The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. | | | Spanish regions are likely to begin using Johnson & Johnson's (JNJ.N) coronavirus vaccine to inoculate 70-79 year olds on Thursday, Health Minister Carolina Darias said on Wednesday. | | | The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. | | | South America is now the most worrying region for COVID-19 infections, as cases mount in nearly every country, the director of the Pan American Health Organization (PAHO) said on Wednesday. | | | A U.S. plant that was making Johnson & Johnson's (JNJ.N) COVID-19 vaccine must fix a long list of problems including peeling paint and unsanitary conditions and practices to resume operation, according to a highly critical report by the Food and Drug Administration. | | | Spain will offer between 5% and 10% of its COVID-19 vaccine shots to Latin American and Caribbean countries this year, Prime Minister Pedro Sanchez said on Wednesday. | | | | |