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Doctor insights on: How Does The Immune System Fight Smallpox

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If my mom had the smallpox vaccination before she got pregnant, am I immune?

If my mom had the smallpox vaccination before she got pregnant, am I immune?

Don't need to be: Smallpox has been eradicated worldwide so there is no longer any need for vaccination, and no you are not immune. ...Read more

Dr. Heidi Fowler
136 Doctors shared insights

Smallpox (Definition)

An infectious disease caused by viruses Variola Major and Variola Minor that was a significant cause of death before ...Read more


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If my parents had the smallpox vaccination, are they still immune 30-40 years later?

If my parents had the smallpox vaccination, are they still immune 30-40 years later?

Agree w Dr. Raff: A study called “Duration of antiviral immunity after smallpox vaccination.” Hammarlund E. etal (Nat Med 2003) showed that >90 % of volunteers vaccinated 25 to 75 years prior still had significant humoral / cellular immunity. ** http://www. Ncbi. Nlm. Nih. Gov/pubmed/12925846** ...Read more

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How does the immune system fight malaria?

How does the immune system fight malaria?

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

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How does the immune system fight off germs?

How does the immune system fight off germs?

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

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Why does the immune system fight & heal physical illnesses but most likely not or never mental illnesses?

Why does the immune system fight & heal physical illnesses but most likely not or never mental illnesses?

Mental illness: This is a very good question and the answer has eluded the medical profession for a long time. Not all mental illness is based on a immune imbalance though and some is related to hormonal imbalances. The workings of the brain are still pretty mysterious. Stay tuned. ...Read more

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How does the immune system fight cancer?

How does the immune system fight cancer?

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

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How can the immune system fight off infection?

Immune system: It is a multi-pronged attack too big to describe here.....So follow this link.

http://www. Niaid. Nih. Gov/topics/immunesystem/pages/default. Aspx. ...Read more

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What food help the immune system fight off an infection?

What food help the immune system fight off an infection?

Nothing specific...: There are no specific foods studied in the scientific literature that boost the immune system but eating a healthy diet in general is good for all aspects of health. A diet rich in fruits, veggies, whole grains, lean meats, and healthy fats will certainly make you feel good. ...Read more

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If you don't get gastroenteritis for years does the immune system become less efficient at fighting it and thus causing severe symptoms when infected?

If you don't get gastroenteritis for years does the immune system become less efficient at fighting it and thus causing severe symptoms when infected?

Consider this...: Lots of things can cause GI distress to recur--incompletely treated infection (e.g. Giardia) or re-exposure with re-infection; maldigestion (pancreatic insufficiency) or malabsorption (celiac sprue); food intolerances with re-exposure to the offending substance (lactose, sorbitol, etc.), irritable bowel syndrome, missed diagnosis (incomplete evaluation), non-gi related problems (uti, pid, etc.). ...Read more

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How can the immune system fight a viral infection?

How can the immune system fight a viral infection?

Several: When the body encounters a virus, it may mount multiple responses to it. This include the production of specific antibody, activation of the body's killer cells, production of mediators such as interferons- just to name a few. ...Read more

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How does the immune system fights a viral infection step by step?

How does the immune system fights a viral infection step by step?

Immune defense: TheRe are textbooks written about this, this is not the right forum for your question. ...Read more

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Is it possible that if a person become in contact with HIV through sex and the virus is at a low level, can the immune system fight it off?

Is it possible that if a person become in contact with HIV through sex and the virus is at a low level, can the immune system fight it off?

HIV: There is a rare subgroup of individuals who have an altered version of the viral attachment site for the cell. Generally this means that the infection progresses less rapidly, but prevention is conceivable. Transmission is never 100% and the lower the viral load the lower the risk of infection, but not because the immune system fights it off. ...Read more

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What does the immune system do? If it fights infection, why does everyone still get the flu and the cold?

What does the immune system do? If it fights infection, why does everyone still get the flu and the cold?

What is the level of: General immunity for the person? Has the person developed antibodies to the specific viruses that they are being exposed to? Are person who is immunodeficient is more likely to become infected. Or if the person is exposed to a germ that is novel to them - they are more likely to be susceptible. ...Read more

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How can our immune system fight anthrax?

How can our immune system fight anthrax?

Vaccination: A vaccine for anthrax was available a while ago and was given to military personnel. For microbial diseases, vaccination is the best way to support the immune system to fight the infection. ...Read more

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Can there be some reason why your immune system wouldn't fight disease at all?

Can there be some reason why your immune system wouldn't fight disease at all?

There some!: Job's syndrome-high ige, deficiency of iga-gi disease, parasites. Complement deficiency: propensity to lupus, ra, and sjogren's. But most people who catch diseases easily are stressed and fatigued. The stress can be emotional of physical or both! ...Read more

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Why are immunosuppressants good for some people if we need our immune system to fight off disease?

Why are immunosuppressants good for some people if we need our immune system to fight off disease?

Relative: Immuno-suppression is resorted to when there is a "hyperactive " immune state leading to an auto-immune disease or condition, or to allow the immune system to adapt to a transplanted tissue, that doesn't mean that the immune system is totally knocked out (in some states yes during bone marrow transplant) but can still fight certain infections, till total recovery, the immune system is complex ...Read more

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If you have an asymptomatic illness, does that mean your immune system isn't fighting the illness off?

If you have an asymptomatic illness, does that mean your immune system isn't fighting the illness off?

Asymptomatic: If you have an illness that is asymptomatic then you should not feel the illness. Asymptomatic means no symptoms do it is hard to tell your sick. This would mean you immune system works. ...Read more

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The other day it felt like my immune system was fighting off something. Is that even possible? I felt a little sick and tired.

Unlikely: But cannot disprove your feelings. It may be that you, in fact were coming down with a mild illness and that your system rejected it, but mild periods of abnormal sensations are not uncommon and may simply be a state of mind. As long as you are getting better you should be fine. Best wishes. ...Read more

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What's your thoughts are on using Echinacea? Does it really work to boost immune system, fight colds? Dose/strength/name brand?

What's your thoughts are on using Echinacea? Does it really work to boost immune system, fight colds? Dose/strength/name brand?

Inconsistent studies: Many studies show echinacea modestly reduces cold symptoms while others show no benefit-they've used diff. Varieties ; preparations- see http://www. Nlm. Nih. Gov/medlineplus/druginfo/natural/981.Html
echinaforce is one type shown to work. Other herbs are more impressive for boosting immunity, like andrographis ; astragalus. Pelargonium sidoides (umcka) has much better evidence for treating colds. ...Read more

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How can our immune system fight foreign bodies?

How can our immune system fight foreign bodies?

Complex: The immune system has many arms in fending off outside invades and cancer cells. The innate one is less specific or nonspecific, the acquired ones target specifically an agent. Then there are antibodies, killer cells. Cytotoxic lymphocytes, complements etc. Our immune system is akin to our defense department using multiple tools to meet a specific threat. We are in trouble when it fails. ...Read more

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What happens to the immune system during the fight-or-flight response?

What happens to the immune system during the fight-or-flight response?

Varies: The immune system is linked to the CNS mostly attributed to neurokinins, substance P etc. In general, emotional stress reduces the immune response but the degree varies greatly among individuals and may or may not be medically significant. ...Read more

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How can I most effectively boast your immune system to help fight any kind of disease?

Here are some ways: There is no good way to boost your immune system. But our body needs proper rest (good sleep) and healthy food/good nutrition to keep us well in all aspects including the immune system. Avoid excesses of alcohol, smoking and over eating. Exercise and eat healthy, plant based foods with ample amount of vitamins and nutrients which are present in fruits and vegetables. This is the best that you cando. ...Read more

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Can your immune system fight chalmdyia there is mixed info on the net one person says yes the other say no so what's the truth?

Can your immune system fight chalmdyia there is mixed info on the net one person says yes the other say no so what's the truth?

Depends: The truth is- it depends on your immune system and everyone is different. If your immune system recognizes the infection and is able to launch the right white cells and antibodies, it should be able to do it. ...Read more

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Can an immune system fight the rabies from a cat?

Can an immune system fight the rabies from a cat?

Rabies: This is a very serious illness and can be fatal. Immune system cannot fight. That is why anti- Rabies Vaccine is administered. ...Read more

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How can I boost my immune system to fight infections?

How can I boost my immune system to fight infections?

No magic pill: Many people are looking for some "magic pill" to "boost their immune system". There is no such pill. However, there is a way to boost your immune system, live a healthy lifestyle. Proper diet, proper sleep- wake cycles, healthy environment, proper exercise are the foundation of good health and good immune health. Supplements should be used selectively to supplement a healthy diet. ...Read more

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How do you boost your immune system to fight off flu?

How do you boost your immune system to fight off flu?

No magic pill: Many people are looking for some "magic pill" to "boost their immune system". There is no such pill. However, there is a way to boost your immune system, live a healthy lifestyle. Proper diet, proper sleep- wake cycles, healthy environment, proper exercise are the foundation of good health and good immune health. Supplements should be used selectively to supplement a healthy diet. ...Read more

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We got very good immune system but why is it that we can't fight hiv?

We got very good immune system but why is it that we can't fight hiv?

Immune system attack: Good evening,
it is an insightful question! HIV agent attacks the immune cells themselves while most other infectious agents are attacked by cells of immune system as soon as they enter our body. Hiv enters the immune cells, kills them, causes programmed cell death of cells, and we lose cell-mediated immunity. This makes us defenseless against other invading organism and normally harmless germs. ...Read more