School sport teams were not tested for drug use but Mr Steel said that might change.

Recruits were tested for drug use.

Methods: Specimens collected after stopping ART were tested for drug resistance by an oligonucleotide ligation assay and consensus sequencing.

One hundred and thirty -two Mycobacterium tuberculosis clinical isolates were previously tested for drug susceptibility to first -line drugs.

Under the new drug-free regime, up to 10 per cent of all inmates will be randomly tested for drug use each year.