Saturday, March 14, 2020

All Viruses and Bacteria are Pathogens essays

All Viruses and Bacteria are Pathogens essays Viruses and Bacteria are Both Pathogenic to Humans This statement is almost true. All viruses are pathogenic but not necessarily to humans, and not all bacteria are pathogenic. All viruses are pathogenic. They may not all be pathogenic to humans, they may infect plants or other organisms. They take control of the host organisms metabolism and force it to multiply the virus. Examples of viruses that infect humans are rabies, mumps, measles, herpes, glandular fever and the infamous AIDS. They can be dispersed in many ways such as; sewage, food, contact, vectors, bodily fluids and sexual activity. We have no cure for viruses. They are very difficult to control, as they are so small and hide inside the cells of the host organism. They also mutate regularly thus stunting our efforts to find a cure. Our only chance against these obligate parasites is our bodys immune response. Viruses produce antigens which lymphocytes recognize. The lymphocytes create antibodies, which lock onto the antigens, allowing a phagocyte to engulf and digest the virus. Once the virus is severely threatened it retreats into the cells of the spinal chord. The antibodies remain within the organism, ready to strike when the virus begins its next attack. We can therefore introduce a small amount of the virus into people, thus creating antibodies and therefore immunizing them. We can immunize people against Influenza but due to the fact that it mutates regularly and new strains are constantly forming we cannot guaranty success and boosters should be kept up to date. We have not yet managed to immunize people against and HIV. The virus disguises itself and so the immune system doesnt recognize the virus until it is too late. Not all bacteria a pathogenic to humans. Some examples of pathogenic bacteria are tuberculosis, cholera and diphtheria. An example of good bacteria is E. Coli. These are the bacteria that produce vitamin K a ...

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