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After a year of vaccines aimed at preventing Covid, treatments for people infected with the virus are few, with most restricted to hospital use and extremely pricey
What are superbugs and how can we protect ourselves after the World Health Organization called antibiotic resistance "one of the biggest threats to global health, food security, and development"?
Fast-spreading coronavirus variants have ignited global concern over whether existing vaccines will be able to protect the world from a virus that is constantly mutating
Covid-19 has killed more than 2.5 million people worldwide since the pandemic began in December 2019, according to an AFP count based on official figures
The British coronavirus variant has increased transmissibility, but other mutations are provoking concern among scientists who are scrambling to work out if they will still respond to vaccines.
The worldwide death toll from coronavirus is approaching two million, with Europe topping 30 million infections and WHO experts working on advice to fight new, more contagious strains of the disease
The medieval Belgian city of Bruges has rounded up swans to shelter them from the spread of bird flu after an outbreak of the virus in France, Denmark and the Netherlands
The number of new Covid-19 cases across Europe declined last week for the first time in over three months, but deaths in the region continued to climb, the World Health Organisation says
Are children a major source of contagion for Covid-19? Experts are still divided on the question, even as governments decide whether to keep classrooms open or shut