Washington: The World Health Organization has not received enough information on the Russian COVID-19 vaccine to evaluate it, the assistant director of its regional branch, the Pan American Health Organization, Jarbas Barbosa has said.
Asked about plans to produce the potential vaccine in Brazil, Barbosa said that should not be done until Phase 2 and 3 trials are completed to guarantee its safety and effectiveness.
“Any vaccine producer has to follow this procedure that guarantees it is safe and has the WHO’s recommendation,” he said in a virtual briefing from Washington.
Earlier Who official said on Tuesday, Dental patients and staff need to be protected from any potential infection by aerosol-generating procedures, as dentists return to work in areas where the COVID-19 pandemic is easing.
There is currently no data on the spread of coronavirus from the dentist’s chair, it said, calling for more research into common procedures that produce tiny floating particles that may cause infection if inhaled.
These include three-way air/water spray, ultrasonic cleaning equipment that removes deposits from the tooth surface, and polishing, the WHO said in new guidance.
