centralasian org

Russia’s vaccine is in use in nearly 70 nations, but its adoption has been slowed by controversies and questions over rare side effects, and it has yet to garner World Health Organization approval.

Scientists are monitoring pets, livestock and wildlife to work out where SARS-CoV-2 could hide, and whether it could resurge.

Evaluations find apps are useful, but would benefit from better integration into health-care systems.