As large crowds gather at events, beaches and airports, COVID-19 cases are climbing in Southern California. Nichelle Medina reports.
With new coronavirus cases and hospitalizations surging across the country and around the world, Pfizer and another company are announcing promising results for their vaccines. NBC national correspondent Miguel Almaguer reports for TODAY. » Subscribe [More]
The trial used a gene test done on tumors to help decide whether a woman would benefit from chemo or if they could receive hormone therapy.
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With the United Nations Climate Change Conference in Paris days away, a new study suggests that, left unchecked, climate change will shrink the global economy by 23 percent. Ben Gruber reports. Subscribe: More updates [More]