Typical Strangles is just a nasty nasty infection. It usually shows itself with a fever and the abscesses around the throat latch.
******* Strangles will show up in the gut, in between the thighs and in other, random places. Occasionally it will show in the chest.
For straight up strangles, the treatment is usually antibiotics and stall rest along with TOTAL quarantine. It is spread through the pus that seeps out of the wounds.
For ******* strangles, you will need a more aggressive approach. Each case of BS is different and needs a vet immediately.