Monthly Archives: December 2021

Mule deer crossing a river in Wyoming. This is one of a growing number of animal species that can become infected with SARS-CoV-2. PHOTOGRAPH BY JOE RIIS , NAT GEO IMAGE COLLECTION COVID-19 is more widespread in animals than we … Continue reading →

After a 9 1/2 hour drive across the Empty Quarter, I arrived at Al-Kharj, ate, and found a hotel. Day 6 Heet Cave. This is not a tourist site!. About 50 km north of Al-Kharj, the last drive is on … Continue reading →

Why Omicron variants BA.4 and BA.5 are causing fresh U.S. outbreaks More infectious than past strains, these subvariants can also more easily escape antibodies from vaccines and previous infections. BY SANJAY MISHRA JULY 1, 2022 National Geographic Two Omicron subvariants are … Continue reading →