The NHS offers screening, free of charge, to identify pre-existing health problems of which you may not be aware, nor be exhibiting any symptoms. The NHS screening may be as part of a national programme for specific demographic groups or may be opportunistic screening when a patient discusses a related problem with their GP.
Group A streptococcus (GAS) is a common bacteria. Lots of us carry it in our throats and on our skin and it doesn’t always result in illness. However, GAS does cause several infections, some are mild and easily treated with antibiotics.