Kamran Khan, St. Michael's Hospital (IMAGE) St. Michael's Hospital Caption The Zika virus, possibly linked to serious birth defects in Brazil, has the potential to spread within the Americas, including parts of the United States, according to a research letter published in The Lancet today by Dr. Kamran Khan of St. Michael's Hospital in Toronto. Credit Courtesy of St. Michael's Hospital Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.