dr. k smith for an explanation as to why the fight. is it under control? join our now we have the cigarettes, i just heard that it was a healthy alternative to cigarettes and do we trust tobacco companies with their message that these new products are actually going to reduce these sugars are making the tobacco tours with welcome back. those are cosmetic, throughout the crisis has been one of the most effective communicators on the development of the vitus. he nice speaks to alex dot chris most welcome back to the alex simon. sean, happy new year. yes indeed, happy new year. but of course, so chris has some new you new volume's up because i was different. is this a strain of the virus and from the other strains like like delta? well they're all part of the same family. and they all therefore related because they are all corona viruses and their corona viruses, which are part of this code bit 19 family. but when only chrome was 1st detected in southern africa, it was actually quite see who is the g p. and in south africa who 1st noticed that a slew of patie