Any microorganism capable of causing disease is a pathogen. These include mold, bacteria, yeast, virus, parasites and more. Disease symptoms are due to the body’s immune system reaction, not the microbes themselves. The immune system attacks tissues where pathogenic microbes are hiding. This auto immune process is one of the body’s protective mechanisms. When pathogenic […]
virus
Do Viruses Exist: What is Immunity and Can Vaccines Provide It
Covid has introduced a fashionable argument that there is no such thing as a virus. This includes flu and covid viruses. This view stems from the following terms. There are two main types of intracellular parasites, facultative and obligiate. Facultative intracellular parasites are capable of living and reproducing in or outside of host cells. Viruses […]