New virus variant detected in India; experts urge caution

A woman reacts as a health worker waits to take her nasal swab sample to test for COVID-19 at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)

An artist makes a mural of the Monalisa wearing a face mask to spread awareness for the prevention of the coronavirus in Mumbai, India, Wednesday, March 24, 2021. (AP Photo/Rajanish Kakade)

A woman covers the face of her child with a scarf at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)

A health worker takes a nasal swab sample of a passenger to test for COVID-19 at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)

Health workers take nasal swab samples of passengers to test for COVID-19 at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)

A health worker takes a nasal swab sample of a passenger to test for COVID-19 at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)

A health worker takes a nasal swab sample of a passenger to test for COVID-19 at a bus terminal in New Delhi, India, Wednesday, March 24, 2021. (AP Photo/Altaf Qadri)