Chris SchutteFeb 4, 20211 min readStudy: International travel had 'biggest impact' in early COVID-19 spreadhttps://thehill.com/policy/healthcare/537315-study-international-travel-had-biggest-impact-in-early-covid-spread
https://thehill.com/policy/healthcare/537315-study-international-travel-had-biggest-impact-in-early-covid-spread