Cuba's tourism industry is under unprecedented strain and struggling to meet demand with record numbers of visitors arriving a year after detente with the United States renewed interest in the Caribbean island. Once a rare sight, Americans are now swarming Old Havana's colonial squares and narrow streets along with Europeans and Canadians. Cuba received a record 3.52 million visitors last year, up 17.4 percent from 2014.
By Julie Steenhuysen CHICAGO (Reuters) - U.S. health officials are stepping up efforts to study the link between Zika virus infections and birth defects in infants amid predictions for widespread circulation of the mosquito-borne virus within the United States during warmer months. The U.S. Director of the National Institutes of Health on Tuesday called for intensified efforts to study the impact of Zika infections, citing a recent study estimating the virus could reach regions where 60 percent of the U.S. population lives. The mosquito-borne virus has been linked to brain damage in thousands of babies in Brazil.