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Vaccines prevent only the infectious diseases that they were made to prevent. For example, a vaccine for one type of flu will prevent that type of flu, but you may still get o…ther types if you are not also vaccinated for them. This is why the seasonal flu vaccine usually contains vaccine for the three most likely types of flu that are expected to circulate at the next flu season. There are vaccines for the various types of influenza, for other viral diseases like measles, mumps and polio and for a very limited number of bacterial disease such as one common type of bacterial pneumonia. See the related questions below for more information about how vaccines work.
Each vaccination is specific for certain diseases. The seasonal flu vaccinations usually cover the three most likely types of seasonal flu that will be expected to be in your… part of the world during the flu season, and would be to prevent you from getting those specific types of flu. The seasonal flu shot for 2009 - 2010 will not provide immunity for the A-H1N1/09 Pandemic "Swine Flu". A second series of two vaccination shots will be necessary for the A-H1N1/09 virus, once that vaccine is released to the first group to have priority to get the vaccinations. Local public health officials will publish when that is available, to whom, and where. For the Northern Hemisphere's 2009 Flu season, according to the Centers for Disease Control and Prevention (CDC): The flu vaccine protects against the three main flu strains that research indicates will cause the most illness during the flu season. This year's influenza vaccine contains three new influenza virus strains. They are: A/Brisbane/59/2007(H1N1)-like virus; A/Brisbane/10/2007 (H3N2)-like virus; B/Brisbane 60/2008-like antigens. The 2009-10 influenza vaccine can protect you from getting sick from these three viruses, or it can make your illness milder if you get a related but different influenza virus strain.
Measles vaccine prevents from measles and is administered to children of 18 months with a second dose before age of 4 or 5 years. Vaccine of measles contain alive viruses (c…alled antigens). The alive antigen can reproduce inside the human body but they do not damage host because they are weakened in laboratory to the point where they are still alive and able to reproduce but can not cause serious illness. When this vaccine is injected into the human body, the T cells of lymphocytes (White blood cells) detect the type of viruses in it. Then B cells of lymphocytes produce antibodies against these viruses. The viruses reproduce inside human body therefore the lymphocytes produce more antibodies against this specific type of viruses. Antibodies bind to the viruses, stop their activity and destroy them. Now the viruses of vaccine have been destroyed but the antibodies against them are still present and they prevent the actual viruses (harmful) of measles to cause illness. The person who has once caught measles also has the antibodies against measles viruses after the actual viruses entered the body and caused illness. Therefore the patient will recover within a week without using the vaccine.This person can not get measles again in life because the antibodies against measeles are already produced for prevntion by catching measles once. These antibodies are memory cell for this specific type of viruses. The vaccine of measles does not cure but it is used for prevention because it helps in production of antibodies against measles without causing illness.
Vaccine can prevent the flu.
There are different kinds of triple antigen vaccines. A triple antigen vaccine is one made with three different antigens (often three virus strains). The seasonal flu vaccines… are examples of triple antigen vaccines, because they contain vaccines against the three influenza viruses most prominent and most likely to spread that season. These are also called Triple Valent or Trivalent vaccines. Another example is the MMR trivalent vaccine made to vaccinate against Measles, Mumps, and Rubella. Several of the childhood vaccinations are this type of trivalent vaccine.
The best way to prevent the disease is by proper food handling and thorough hand washing, after using the toilet and whenever hands are soiled.
The kind of vaccine that prevents Polio is called IPV.
Hepatitis B and HPV. only if you are vaccinated prior to exposure HPV has a vaccination. HPV or human papilloma virus. ~~~~~~~~~~~~ and Hepatitis B There are two sexually t…ransmissible infections for which vaccinations are available for prevention. They are hepatitis B and HPV. The HPV immunization protects against many, but not all strains, of HPV, but is shown to decrease the risk of most of the the highest-risk subtypes (those that cause cancer) and, for one immunization, the most common causes of genital warts. In the US, there is a vaccine available for HPV, the virus that causes a lot of cervical cancers in women. The vaccine is called Gardasil. There are also vaccines for Hepatitis A and B. Some STDs, like genital HPV, hepatitis B, and hepatitis A (which is rarely sexually transmitted) are vaccine-preventable. Also, gonorrhea and syphilis are treated with antibiotic injections.
There are 2 types of vaccines: (1) Live ("attenuated", or bred to be harmless) (2) Killed (dead disease-causing particles) Live vaccines can be more effective, don't usu…ally need 'booster' shots later to make them work better, but are less able to be given to immunocompromised or pregnant people as they are still alive. Killed vaccines are less effective, often requiring boosters, but can be given to immunocompromised people and (often) pregnant ladies. They are used with an "adjuvant", or a substance that helps them work better (makes your body more able to make antibodies to them faster). Both types of vaccines have 'epitopes', or molecules that your body recognises. These epitopes are the SAME as what is on the actual disease-causing particles. This is why they work - your body sees the "HARMLESS" particles and learns to recognise them, or creates "antibodies" that help your body respond to the actual thing when it appears. It takes time to create these antibodies, so if you can make them BEFORE the actual disease finds its way into your body, you can respond much faster and destroy the virus particles before they can cause you harm. The type of vaccine depends on what has been developed. There are benefits of both ways, but it is not always easy to do both. Side note: occasionally, you will hear about how "vaccines are horrible, and cause more harm than good". Most of the time, people use multi-resistant organisms as examples, however, these organisms become resistant to ANTIBIOTICS, and NOT vaccines! Having antibodies is natural, unlike many antibiotics! They are NOT comparable! Antibodies are a post-infection method of disease control, whereas vaccines prevent the disease from establishing. Thus, vaccines have in the past been used rather successfully to rid the world of several diseases! (Which we can ALL be extremely grateful for!!!!!) Another poorly-used example was that of the smallpox vaccine causing many deaths. Reasons why this example is tragically misused is that it was the first-ever attempt at vaccination in recorded history (we no longer live in such an age where we must rely on random human-testing of live NON-attenuated pathogen injection!). Smallpox protection included injecting pus from the lesions of an infected person (or another vaccinated person) to create antibodies. Case in point: we no longer inject pus into people... it's a good way to spread other infections, and is less reliable in results. We no longer live in the 'dark ages' of immunology. The first attempts at reaching space failed badly, and yet nobody seems to be boycotting space travel now that science and technology has improved, so please be open-minded if anyone ever tells you that in vaccines, in general, are "bad". Okay? :)
A single dose of chickenpox vaccine is 80-85% effective at preventing chickenpox. A second dose of vaccine will increase the effectiveness. Breakthrough chickenpox (a mild cas…e occurring in vaccinated people) is possible, but it's much less severe and less dangerous than natural chickenpox infection. Shingles is possible after chickenpox vaccine as well, but is less common than in those who had natural chickenpox disease.
Rotavirus is a disease that causes extreme diarrhea particularly in children and the elderly. The vaccine is given to children aged 2 to 3 years old and effectively reduces th…e number of children who contract the disease, and the severity for those who do get it.