A second case of New World screwworm was confirmed in Texas this week in a one-month old calf nearly six miles from where the first case was detected.

The Department of Agriculture flagged a possible case of New World Screwworm or NWS in South Texas, sparking fears about the flesh-eating fly coming to the US.

The U.S. Department of Agriculture has confirmed that the New World screwworm fly has arrived in south Texas

Agriculture Secretary Brooke Rollins said USDA officials detected a screwworm on a three-week-old calf in Texas, near the Mexican border.