Vaccine won’t give us herd immunity this year
According to several health experts the rollout of coronavirus vaccines in many countries will not provide herd immunity from the global pandemic this year. This can be ascribed to limited access for poor countries, community trust problems and potential virus mutations. (Reuters, 11 January 2021)
Herd immunity refers to a situation where enough people in a population have immunity to an infection to be able to effectively stop that disease from spreading. More than 90-m people are reported to have been infected by the novel coronavirus globally and about 1.9-m have died from the disease since it first emerged in China in December 2019.