United Nations Secretary-General Antonio Guterres called on May 12 for the need to double the capacity of Covid-19 vaccine production and for fairer redistribution of the shots in the developing world, which faces new waves of the coronavirus.

Former U.S. Presidents Barack Obama, George W. Bush and Bill Clinton said they were willing to be vaccinated against the novel coronavirus on television in order to ease any public skepticism over the safety of new vaccines.

World leaders came together virtually to mark the 75th anniversary of the United Nations, as the deadly coronavirus pandemic and tensions between the United States and China challenge the effectiveness and solidarity of the 193-member body.

One in seven cases of Covid-19 reported to the World Health Organization is a health worker and in some countries that figure rises to one in three, according to the WHO.

As the United States has begun to formally withdraw from the World Health Organization (WHO), opponents of the plan are urging Congress to block the move, citing concerns that the move will weaken global health security.

The United States will end its relationship with the World Health Organization over the body’s handling of the coronavirus pandemic, U.S. President Donald Trump said, accusing the U.N. agency of becoming a puppet of China.

United Nations leaders called for a global effort to develop and distribute to all at affordable prices vaccines, treatments and testing kits against COVID-19.

Despite infecting more than 3 million people around the world, there are 34 countries and territories that have not reported a single case of the novel coronavirus.

The World Health Organization said on Saturday that there was currently “no evidence” that people who have recovered from COVID-19 and have antibodies are protected from a second coronavirus infection.

A rubbery sea creature with a habit of clinging to ships and invading beaches could help measure plastic pollution, as sea squirts can filter tiny particles from the ocean and store them in their soft tissue.