Stopping an illness or disease before it even starts is the best case scenario for the medical world, and many vaccines have been invented for that reason. Administering them to the population is often a massive effort, but many previously deadly diseases have been mitigated or eliminated by this process. Doctors find it is a much easier task to inoculate a healthy patient than try to fight an illness in a sick one, so they encourage all their patients to seek any necessary inoculations as early as possible.
There are many different types of influenzas that travel the globe on a regular basis, and several types are generally present each year. Pharmaceutical companies attempt to figure out the most likely ones that will make the rounds, and they then formulate vaccines that will help prevent the three most common ones predicted to strike that year. Getting an annual flu shot has become an important step in prevention in many countries, and it is generally targeted at the youngest and oldest members of society.
Childhood illnesses such as the measles can be deadly, but there are now programs to combat it. While some countries allow parents to opt out of this inoculation program, the majority of parents would rather let their children receive the shot. Measles for most children today is more of an inconvenience, but it can be deadly if they are not inoculated before contracting it. Saving lives is the goal of the program, and it has proven effective over the years.
There are many ways parents can now protect their children and their elderly parents with inoculations, and scientists are working diligently to come up with more vaccines. Each one will help prevent an illness entirely or mitigate the severity so that the patient will survive even if they do come down with it.