A leading Russian microbiologist has claimed the coronavirus is the result of Wuhan scientists doing 'absolutely crazy things' in their laboratory. World renowned expert Professor Petr Chumakov claimed their aim was to study the pathogenicity of the virus and not 'with malicious intent' to deliberately create a manmade killer. Professor Chumakov, chief researcher at the Engelhardt Institute of Molecular Biology in Moscow, said: 'In China, scientists at the Wuhan Laboratory have been actively involved in the development of various coronavirus variants for over ten years. 'Moreover, they did this, supposedly not with the aim of creating pathogenic variants, but to...