Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said the challenge is to make sure the variants of the coronavirus don't become dominant.
This digitally colorized microscope image provided by the National Institute of Allergy and Infectious Diseases (NIAID) shows Staphylococcus aureus bacteria in yellow. New research found protective bacteria in healthy skin produce natural antibiotics that can guard against disease-causing Staph aureus. (National Institute of Allergy and Infectious Diseases via AP)
President Barack Obama listens as Dr. Nancy Sullivan, Senior Investigator; Chief, Biodefense Research Section, National Institute of Allergy and Infectious Diseases, during a NIH tour of the Vaccine Research Center at the National Institutes of Health (NIH), Tuesday, Dec. 2, 2014, in Bethesda, Md. (AP Photo/Pablo Martinez Monsivais)
Dr. Anthony Fauci, head of the National Institute of Allergy and Infectious Diseases, said the original Centers for Disease Control and Prevention instructions for dealing with the virus were taken from the World Health Organization's protocol for Africa, where conditions are much different from those in U.S. hospitals. (Associated Press)
** FILE ** This undated electron microscope image made available by the National Institute of Allergy and Infectious Diseases — Rocky Mountain Laboratories shows novel coronavirus particles, also known as the MERS virus, colorized in yellow. (AP Photo/NIAID - RML, File)