Vaccine Preventive Effectiveness Index

The Vaccine Prevention Effectiveness Index is an indicator used to evaluate the effectiveness of vaccination. This index is defined as the ratio of the number of people who got sick in the control group to the number of people who got sick in the group that received the vaccine.

The preventive efficacy index is an important indicator for assessing the effectiveness of vaccines. It measures how well the vaccine protects people from getting the disease. If the index is high, then the vaccine is effective and can be used to prevent the disease.

To determine the index of preventive effectiveness, it is necessary to conduct a strictly controlled epidemiological experiment. In this experiment, a control group of people does not receive the vaccine, while a group that received the vaccine receives it. Both groups are then observed for a certain period of time to determine how many people in each group got sick.

After the experiment, the index of preventive effectiveness is calculated as the ratio of the number of sick people in the control group to the number of sick people in the group that received the vaccine. The higher the index, the better the vaccine protects people from the disease and the more effective it is.

It is important to note that the preventive efficacy index is not the only measure of vaccine effectiveness. It can be supplemented with other indicators, such as the level of protection, duration of action of the vaccine, etc.

Vaccination is one of the most effective ways to protect our body from diseases. Understanding the importance of vaccines for humanity, the World Health Organization (WHO) developed and recommended certain requirements for these drugs. The vaccine standard includes requirements for:

- the type of microorganisms contained in the vaccine; - level of antigen purification; - the principle of action (vaccine) of the drug; - form of release of the drug; - the presence of solvents or adjuvants for internal use; - storage and transportation; - safety and reactogenicity.