While it does not happen all the time; yes, ANY infection can affect your whole body. An infection signals the body's immune system to be active. This means that the body's blood vessels swell up an start leaking to get immune cells in the area of the the infection. The immune cells are now active and travel throughout your body. Chronic (long standing) inflammation starts to affect other organs as well as affect illnesses such as diabetes. Hope this helps.
My best to you!
William F. Scott IV, DMD
Many of the diseases are related to your oral health. Your mouth is the gateway to your body. So if you maintain your oral health that will surely help you in ignoring the different diseases like diabaties, pregnancy, hrat disease etc.