Doctor insights on:
Rabies And The Immune System
Two stages: Natural Killer cells are the first immune step that seeks out the malaria to mark it for the body to "kill" it. A second step is the T cell that also seeks the genetic marker of the malaria to flag it for a "kill". Since malaria invades natural cells of the body it can begin to hide from the immune system and replicate. Consider vaccination if traveling in high risk areas with malaria. ...Read more
Complicated: Natural killer cells can recognize tumor cells and virally infected cells and destroy those. T-cells and antibodies to markers on tumor cells may also destroy tumor cells. Unfortunately, most of the time, some cancer cells evade this destruction and continue the disease process. The hope and potential of immune therapy remains to be realized. ...Read more
Heard to simplify.: Like a complicated orchestra plays a difficult score. Different germs produce different responses. There are is nonspecific and specific immune responses. Even the skin oils, saliva, stomach acid tears and sweat are important here. It is much to difficult to quickly answer which is why i taught a course taking 20 hours on the subject to medical students. ...Read more
HIV: Hiv is the disease that destroys cd4 helper t-cells in our body. Aids is the final stage when HIV has won and overwhelmed the immune system. There are so many good treatments, you must see your infectious disease specialist to be placed on appropriate HIV therapy. ...Read moreSee 2 more doctor answers
Immune system: The immune system is composed of many interdependent cell types that collectively protect the body from bacterial, parasitic, fungal, viral infections and from the growth of tumor cells. Many of these cell types have specialized functions. The cells of the immune system can engulf bacteria, kill parasites or tumor cells, or kill viral-infected cells. Often, these cells depend on the t helper cells. ...Read more
Complicated: By fighting tumor causing viruses, e.G, ebv, hpv, good immune response may prevent the development of tumors. There is a general hypothesis that tumors have antigens not present on normal cells and that immune system may be able to eliminate incipient cancers. However the system is far from perfect as cancers occur all the time. ...Read more
Hits white bld cells: The HIV virus (leading to aids) attacks and destroys a critical white blood cell of the immune system: the "cd4+ t-helper" cell. With these cells knocked out, the body's immune system is crippled and left unable to fight off infections which would ordinarily be easily handled by a normal immune system. ...Read moreSee 2 more doctor answers
Please see below: Children and adults who have giardia infection without symptoms usually don't need treatment unless they're likely to spread the parasites. Many people who do have problems often get better on their own in a few weeks. If you have to treat:metronidazole (flagyl). Tinidazole (tindamax). Nitazoxanide (alinia). ...Read more
Intriguing: We don't know how or why infection with nematodes minimizes the chance of developing autoimune diseases such as crohn's or ulcerative colitis. Preliminary research indicates an interacton between t-helper cells (part of immune system) and nematodes. More research is underway. ...Read more
Infections good/bad: Can be good or bad. Germs (viruses, bacteria, parasites, etc) stimulate one or more response(s) by immune system to isolate and destroy the "attacker" which is usually good. However that immune response may be excessive leading to disease (ie autoimmune illnesses) bad. The improvement in childhood health may be contributing to the increase in allergy, the hygiene hypothesis, usually a negative. ...Read more
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