infectious diseases (those with bacterial or virus, or prion) you can also "catch" chemical based diseases such as contamination burns if you come into contact with someone with the chemicals on them.
During the Cold War era, the development and distribution of condoms played a significant role in promoting public health and addressing concerns about sexually transmitted diseases. Condoms were seen as a crucial tool in preventing the spread of diseases such as HIV/AIDS and syphilis, which were major concerns during that time. By making condoms more widely available and promoting their use, public health officials were able to reduce the transmission of these diseases and protect the health of individuals.
Viral diseases can be transmitted through direct contact with an infected person, through respiratory droplets, or via contaminated surfaces. Common examples of viral diseases include the flu, common cold, and HIV. Vaccinations are an effective way to prevent the spread of viral diseases.
i think they can catch pneumonia but im not too sure xD Pneumonia is not in itself a contagious disease (either between humans or between animals and humans). However the thing which caused the pneumonia (normally a virus) can be contagious.
There is the common cold and influenza.
Fever and cold
The common cold and sneezing.
Benjamin Franklin studied the common cold. He discovered that the common cold is transmitted between people especially when they are in confined spaces
Any communicable disease is an infectious disease. See "Infectious and no Infectious Diseases what is the difference?" question .Common Cold Common cold and AIDS both are infectious diseases unless you take necessary precautions.
cold sores are a form of herpes... sexually transmitted, but sex doesnt necessarily have to be involved. it could be kissing. You need a better answer than I can provide for the process.
common cold
Small pox, Scarlett Fever, Common Cold, flu...