* Bacteria: such as Salmonella, E. coli, and Streptococcus pneumoniae
* Viruses: such as influenza, measles, and HIV
* Fungi: such as Candida, Aspergillus, and Cryptococcus
* Parasites: such as malaria, hookworm, and tapeworm
Pathogens can cause a wide range of diseases, from mild to severe. Some pathogens can even be fatal. The severity of a disease depends on the type of pathogen, the person's immune system, and other factors.
There are a number of things that can be done to prevent the spread of pathogens, including:
* Washing your hands frequently with soap and water
* Covering your mouth and nose when you cough or sneeze
* Avoiding contact with people who are sick
* Getting vaccinated against preventable diseases
* Practicing safe sex
* Eating only properly cooked food
* Drinking only clean water
By following these tips, you can help to reduce your risk of getting sick from a pathogen.