13 Apr 2021 - 18:42 A person receives a dose of the Johnson & Johnson coronavirus disease (COVID-19) vaccine during a visit of U.S. Vice President Kamala Harris to a vaccination center in Chinatown, in Chicago, Illinois, U.S., April 6, 2021. Picture taken April 6, 2021. REUTERS/Carlos Barria Reuters GENEVA: The World Health Organization, asked about reports of rare blood clots after vaccination with the Johnson & Johnson COVID-19 shot, told Reuters on Tuesday that it awaited reviews by the U.S. and European regulators and was monitoring global data. "We're watching closely, waiting for EMA (European Medicines Agency) and FDA (U.S. Food and Drug Administration) reviews and monitoring the global database of adverse event reports to see if there have been cases anywhere else," the WHO said in an email reply. "It will take a little time to review the data."