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.