Answer:
Vaccines have been around since 1796 preventing people from diseases and decreasing death rates. I believe due to the modern vaccines and medicine people have been living longer than life expectancies in the 1700's and 1800’s, which was between 30 and 40 years. Vaccines train the human body to recognize viruses or bacteria and the antigens (molecule capable of inducing an immune response) will start attacking the virus or bacteria before it tries to spread and cause sickness once it is has recognized it. However, vaccines are not always 100% safe because they can come with side effects. For example, the Hepatitis B vaccine had a severe allergic reaction, called anaphylaxis which caused difficulty breathing, dizziness, and skin rashes for a few people.
Explanation:
Alternative cancer treatments are better studied than conventional treatments such as chemotherapy.
I don't think that infertility<span> services should be required for coverage on insurance plans, but I do think people should have options to provide themselves with that coverage for an extra premium. A woman would have to elect the additional premium by a certain age (determined by the insurance company), and so long as those premiums are up to date then infertility treatment could be covered. It might actually be a moneymaker for the insurance companies, and provide a sense of security to people who know that having a family will be a priority they will fight for financially if they have to.</span>
Cross contamination can happen. It is the process in which the microorganisms can be transferred from one substance to another and causing a dangerous effect especially on food thus the answer is Canned goods should be free of dents and any bulging lids to avoid this.
It prescribed to for as needed
