(REUTERS)  Zika infections in Puerto Rico appear to be increasing rapidly, top U.S. health officials said on Friday, raising concerns for dozens if not hundreds of cases of microcephaly. Puerto Rican health officials on Friday reported that 1,726 people in the U.S. commonwealth have been infected with Zika, including a total of 191 pregnant women. That is up from a total of 1,501 total infections and 182 infections in pregnant women a week ago. […]