Vaccines are normally dying or dead viruses of what you are trying to eliminate. For example: You can not get a shot for measles and have it cover the flu as well because they are different viruses.
A vaccine is made with a small amount of the virus in it so that your body can recognize the virus and fight it off. Vaccines have several different strains of the virus since doctors do not always know exactly which kind will be present. For example when looking at the flu vaccine, doctors put 3 different strains of the flu virus in the vaccine based on the history of which strains have been present in recent years. Because the viruses in the vaccines are educated guesses, they may not always protect against all viral infections.
That is a question which requires a pretty huge answer. However one of the main reasons why vaccines are not available for all diseases is that not all diseases are caused by bacteria or viruses (which is what vaccines are based upon treating); a significant amount of conditions are caused by vitamin and mineral deficiencies, some are autoimmune, some are pretty random (such as who gets cancer and who does not), some have unknown causes, some are congenital, some are hereditary... you get the picture. It is not possible to vaccinate against things which do not have a bacterial or viral cause. They are tryen thought and some acually get you sick.
There are many reasons for the same. First of all that you have not identified all of them, even today also. Secondly, many viruses change their antigenicity or the antigenic configuration, frequently, making it difficult to prepare the vaccines for so many strains. That will be too expensive and you may have to give large number of injections to the baby or the doses may be too big. Already the child gets too many shots and parents have to pay through their noses.
Mutation. As the virus mutates, previous vaccines will no longer be effective.
they don't protect against all viral diseases because unfortunately some diseases have an immunity to vaccines
They stimulate the immune system to recognize and kill any virally infected cells the next time you're exposed to the disease.
Because we have not developed vaccinations for all diseases yet.
The vaccine preventing measles is for measles only. Other diseases with the same symptoms are much less serious and don't need that much immunity
No. Rabies vaccine is just that-a vaccine for rabies. To protect your dog against distemper,parvo and other diseases the dog must also be vaccinated agaist those. Frequently these are given in a combination shot,so your dog only has to get poked once to be protected from up to 7 diseases. Rabies vaccine,however,is always just for rabies.
The vaccine that is for mumps is not for any other pathogen. The vaccine is said to be specific. It can be said that the vaccine is like a pair of shoes that fits only you and not your father.
1.) Make sure situation is safe and check for potential hazardous materials.2.) Protect yourself from diseases that may come from the other person.
No. Hepatitis B and HIV are two different viruses. One does not cause the other.
Vaccines are beneficial in that they have helped prevent millions of cases of infectious disease, and hundreds of thousands of deaths. Vaccines have eliminated the scourge of smallpox from the face of the earth, and polio and other diseases have been largely controlled. A vaccine acts by stimulating a person's own immune system to produce antibodies against parts of a bacterium or virus. When the person is once again exposed to that bacterium or virus, the body can quickly produce antibodies and prevent infection. In addition, vaccines can protect individuals who have not been immunized. If the percentage of the population that is vaccinated is high enough, epidemics can't take hold, as there are not enough susceptible individuals for the infection to spread. This helps to protect those individuals who are either unable to take the vaccine, unable to mount an immune response (chronically illl individuals, infants under 6 months old, people on immunosuppressant medications), or who had a poor response to the vaccine (and didn't become immune).
non-communicative diseases
Communicable diseases are diseases that can be passed from one person to another. These include all STDs, such as AIDS, as well as many other diseases.
by just breathing it through the air and other ways to
Cancer, diabetes, hypertension are few non infectious diseases. These diseases are not transferred from one person to other person.
Cowpox. Edward Jenner inoculated a boy with cowpox in early discovery of smallpox vaccine, it is part of the Vaccinia virus family
Yes. The ability of flu vaccine to protect a person depends on two things: 1) the age and health status of the person getting vaccinated, and 2) the similarity or "match" between the virus strains in the vaccine and those circulating in the community.Vaccinations are not 100% effective for every person. Vaccinations for the flu are usually around 80% effective, but some years they are better matched to the viruses in the environment and then are more effective. Each individual's response to the vaccine will vary. The elderly tend to not have the same effects as younger and healthier people do, they have a less robust immune response and less protection than those without other diseases and disorders.For more reasons why you might get the flu even though you were vaccinated, the question in the related question section gives more detail.