The World Health Organization called Friday for Chinese health authorities to release genetic sequences of SARS-CoV-2 that recently disappeared from an international database, after an analysis of the data found it offered new clues that might point towards an animal origin for the COVID-19 pandemic.
All skin tests doctors commonly use to check for food allergies can provide false negative results, the Food and Drug Administration has concluded — meaning people with potentially life-threatening allergies could mistakenly be told they are not at risk. The tests will now be required to include a warning urging doctors to consider double-checking the test with more accurate approaches.