An enlarged lymph node in the area of an infection (such as a swollen neck node during an ear infection) may double in size, going from about a quarter- or half-inch to nearly an inch wide.

CNN: Should I worry about my son's swollen lymph node?

He also highlighted, "the risk of pseudomonas infection and the consequences for any clinical area where there are immunocompromised or debilitated areas".

BBC: Health statement

The results showed that culling badgers - a natural reservoir for bovine TB - did reduce the incidence of disease in cattle within the trial area, but that infection rates increased in the surrounding countryside as badgers were displaced.

BBC: Badgers back in the firing line