Why are new vaccines being added to the list?

Short Answer

Even though we have come a long way in our understanding of infectious diseases, there is still work to be done to ensure the safety and well-being of people all over the world. Immunizations for HIV, malaria, and others are being developed to provide future generations with a better chance of preventing disease outbreaks. Also, more advanced versions of current vaccines are being developed to adapt to new forms of the diseases or improve their effectiveness.

Source:

http://www.historyofvaccines.org/content/articles/development-immunization-schedule

http://immunizeforgood.com/vaccines/new-vaccines-on-the-horizon

http://www.chop.edu/service/vaccine-education-center/vaccine-schedule/

Vaccines are hailed as one of the most important public health achievements of the 20th century. In the years to come, new vaccines will change how clinicians prevent and treat disease.

To protect more children, scientists and doctors are working hard every day to develop new vaccines. There have been great strides in creating vaccines to prevent cancer, diabetes, and Alzheimer’s. Currently, a vast polio immunization campaign is underway using a new bivalent vaccine, which trials show is 30 percent more effective than any other polio vaccine. World Health Organization officials predict its use will help achieve global polio eradication. In February 2011, researchers successfully studied a universal flu vaccine, which might protect against all strains of influenza for 10 years at a time, would not need to be reformulated each year, and would prevent around a billion people from contracting influenza.