News & Perspective

Weekly prescriptions for oral COVID-19 antivirals rose from about 27,000 to more than 182,000 in 7 weeks.

Cases are rising in South Africa, where researchers are closely tracking two new Omicron subvariants, BA.4 and BA.5. Both seem to be more transmissible than BA.2.

This school year 35,000 more US kids were not protected against common diseases.

Also, Philadelphia reinstates a mask mandate, the first major US city to do so.

Among SARS-CoV-2 isolates, 99.8% are Omicron, and 93.6% of those are the faster-spreading BA.2 subvariant.