Invasive insect poses health threat in 19 states, expert warns

Invasive insect poses health threat in 19 states, expert warns

Asian needle ant can cause anaphylactic shock, says entomologist

The Asian needle ant has spread to at least 19 states across America, experts warn. (Alamy)

The Asian needle ant's sting can cause anaphylactic shock, and the source can sometimes go unrecognized given the ant's small size. (Alamy)

The ants hide under patio stones, logs and leaf debris. They are especially active in the summer months, according to an expert. (Alamy)