WHO fears 'vaccine nationalism' as world seeks Covid-19 inoculation

UN group raises concerns that the pandemic's spread was being driven now by younger people, many of whom were unaware they were infected

Nations that hoard possible Covid-19 vaccines while excluding others will deepen the pandemic, World Health Organization (WHO) chief Tedros Adhanom Ghebreyesus said on Tuesday, issuing a last-ditch call for countries to join a global vaccine pact.

The WHO has an August 31 deadline to set terms of its "COVAX Global Vaccines Facility" for sharing vaccine hopefuls between wealthy and developing nations. Tedros said he sent a letter to the WHO's 194 member states, urging participation.

The global health agency also raised concerns that the pandemic's spread was being driven now by younger people, many of whom were unaware they were