Coronavirus: WHO head calls herd immunity approach ‘immoral’
Dr Ghebreyesus said allowing the virus to spread would cause 'unnecessary' suffering
The head of the World Health Organization has ruled out a herd immunity response to the pandemic.
Herd immunity occurs when a large portion of a community becomes immune to a disease through vaccinations or through the mass spread of a disease.
Some have argued that coronavirus should be allowed to spread naturally in the absence of a vaccine.
But WHO chief Tedros Ghebreyesus said such an approach was "scientifically and ethically problematic".