The downward trend of COVID-19 pandemic in Africa is affected by the impact of transmissible variants, especially the Delta variant, warned Thursday the World Health Organization (WHO).
Research from multiple countries shows the Pfizer shot and other widely used COVID-19 vaccines offer strong protection against the highly contagious delta variant
Sri Lanka on Friday reported a fresh high of 101 new fatalities from COVID-19, taking the death toll to 2,011, official figures from the health ministry showed
