The tiny organisms that cause diseases are most often referred to as pathogens. Pathogens are easily transmittable from one person to another, which means that the diseases they cause are highly contagious. Pathogens can also be called viruses. They cause a wide variety of infections, from the common cold to the deadly AIDS virus.
While it is impossible to prevent the spread of pathogens completely, there are a few ways that you can protect yourself from catching different viruses. Be sure to practice proper hygiene and wash your hands regularly, especially when you’re in areas where germs are common. You should also use proper protection when engaging in sexual activity. Finally, be sure to stay up to date on your vaccines.