NEW DELHI: To gain a better understanding of how Covid-19 is mutating, scientists have completed genome sequencing of samples of those patients who returned from Italy and their contacts who tested positive.Researchers from National Centre for Disease Control, the National Institute of Virology and the Indian Council for Medical Research found the Covid-19 strains in patients with travel history to Italy was similar to the Covid-19 strains found in Europe and Brazil. “We found the Covid-19 strain in Italy-returned patients matched those found in Brazil Germany , Switzerland, France, Hungary, Netherlands, Scotland, England and Finland,” said researchers.Amita Jain, head of microbiology at King George’s Medical University and coauthor of the report, told TOI, ”The strains found in these nine countries which matched with the strains found in those who returned to India from Italy will be considered as one known mutation.”a