When talking about herd immunity, he explained that it has to do with the moment when a percentage of people immunized by the disease is achieved, either naturally or by vaccines, and there begins to be a drop in the disease.
When there is no herd immunity, one person has the ability to infect many
To the extent that they become immunized by the vaccine, a shield is built where these people cannot potentially infect others, ”he explained.
He added that another important vaccine to apply is the cognitive one, where the bad information that is based on social contagion and the vision we have of the world causes the population to believe in theories that are not true; so it is necessary to create schemes and programs so that people do not believe in fallacies.
Addressing the topic “Cellular Immune Response in a Vaccine”, Dr. Susana del Toro Arreola, from the CUCS Chronic-Degenerative Diseases Research Institute, highlighted that the implementation of vaccination marked an important change in the war between microbes and humans, and although sanitation techniques and the development of antibiotics have saved many lives, there is overwhelming evidence that demonstrates the benefit of vaccines as one of the most successful health interventions throughout history.
“They are one of the most compelling examples of how biomedical research has saved lives and dramatically reduced cases of infectious disease,” she said.
She said that despite the success of vaccination, one of the great ironies in the field is the fact that a wide variety of vaccines have been developed empirically, without a clear understanding of the immunological mechanisms by which they induce protective immunity.
The main challenge in vaccine design is that they be safe
Since the immune response evolved to provide protection against infectious diseases, the optimal development of a protective immune response by a vaccine should mimic the steps and processes caused during the establishment of natural immunity,” she explained.
She added that other challenges facing the development of new vaccines are related to the characteristics of the pathogen and those of each particular population.
The Coordinator of the symposium, Dr. Edith Oregón Romero, expressed that the COVID-19 pandemic brought with it new challenges for science and for all health systems in the world, both to apply the lessons of the past and not to make the same mistakes. of yore.
“The development of specific and effective treatments for the disease caused by this new virus, as well as the development of reliable, reproducible and accessible diagnostic methods for the entire population, has been a global priority; likewise, the development of effective and efficient vaccines. Vaccination is the key to achieving the goals and sustainable development of poverty reduction and universal health coverage,” she stated.