A handful of South Africa’s top Covid-19 scientists have been at the receiving end of vicious backlash, including abuse, intimidation and death threats, over their research. News24 reports that South African Medical Research Council CEO Professor Glenda Gray is one such target. She said that a letter was sent to President Cyril Ramaphosa ahead of the last presidential address, listing five top Covid-19 researchers, including herself who should “be assassinated” that their “addresses … were known, and they were under surveillance and “were marked””. Another letter sent to Professor Tulio de Oliveira, Stellenbosch University researcher and head of the KwaZulu-Natal Research Innovation and Sequencing Platform, and other Krisp researchers refers to the scientist as “idiots” and includes several intimidating and abusive slurs.