by Dr Muzafar Jan For the third time in as many decades, a zoonotic coronavirus (CoV) has crossed species to infect human populations. Until the 2000s, CoVs were considered minor pathogenic for humans, generally associated with a common cold or mild respiratory infections in immunocompetent people, with rare exceptions in infants, young children and … Continue reading What Makes SARS-CoV-2 a Difficult to Tackle Bug?