As mentioned there are several types of bacteria that are classified as diplococci bacteria given that they occur in pairs. People and pets dogs cats are at risk when they are bitten by these fleas. Diseases Infographic Disease Infographic Infographic Health Infographic Its a Gram-negative bacteria and is characterized by a spiral shape. . Bacterial infections can affect the throat lungs skin bowel and many others parts of the body. Clean separate cook and chill. Plague is a disease caused by Yersinia pestis bacteria that can cause illness in people and animals. However a relatively small list of pathogenic bacteria can cause infectious diseases. Most types of coliform bacteria are harmless to humans but some can cause mild illnesses and a few can lead to serious waterborne diseases. This section will focus on four types of diplococci bacteria and some of the diseases they cause. These anaerobes cause dise