If someone has ludwig's angina, can they infect someone? like kissing or sharing water?

Contagious: Ludwigs angina is usually caused by a bacterial . Infection and therefore is contagious.

They're infected: Ludwig's angina is a bilateral multi-space neck infection that is dangerous to the patient because it can compromise their ability to breathe. This can be life-threatening so they need immediate treatment for this overwhelming infection. La can result from badly infected teeth and pus may drain into the mouth spontaneously. Though the infections may not be communicable, avoid sharing germs.