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The article I found that addresses the impact P4 medicine has on the wellness of the people to the United States is called Healthy Aging and Vaccines: Application of the P4 Medicine Concept to Immunizations by Jean-Pierre Michel and Fiona Ecarnot. This article was interesting and hit home for me because it stressed the importance of vaccinations even in the middle of the global controversy over the COVID-19 vaccine. Here is the link to the article: Healthy Ageing and Vaccines: Application of the P4 Medicine Concept to Immunizations FullText Gerontology Karger Publishers (Links to an external site.) 
Article Summary
Michel and Ecarnot (2021) first stress in their article how many millions of lives are saved each year because of vaccinations. Our country seems to be forgetting that especially important piece of information and instead focusing on potential adverse effects vaccines can rarely cause. The article then goes on to explain how vaccines meet the four Ps of medicine. Prevention is a given, as vaccines are made and given to prevent diseases and illnesses. Vaccinations must be personalized to fit the needs of each individual patient (Michel & Ecarnot, 2021, p. 3). Patients with diabetes and heart and lung disease are more susceptible to infections and benefit from receiving vaccinations. Predictive medicine is generally based on biological and genetic information, while in the field of vaccination, the predictive perspective is more closely linked to the collection of epidemiology data (Michel & Ecarnot, 2021, p. 3). Vaccines help develop herd immunity. Herd immunity benefits the whole community even those who are medically unable to get vaccinated. Vaccinations are also key in the prevention of drug resistant infections. Vaccines help limit the use of antibiotics. There was also a study done that showed a link between vaccines and a lower risk of developing Alzheimers disease. Lastly, vaccine use is participatory. It is a persons decision to receive the vaccine. A persons ability to understand the information on the benefits of vaccinations has a profound impact on whether they decide to receive them. Vaccine literacy requires the individual to seek out relevant information among the ever-increasing data glut in the media (particularly on the Internet) and make appropriate decisions about vaccination (Michel & Ecarnot, 2021, p. 4). The use of vaccines is also ethical because they not only impact the health of the individual, but also the whole community. 
Nursing Practice Considerations and Recommendations
Nurses and other healthcare providers can have an impact on patients willingness to receive vaccinations. The role of providers as knowledge brokers is essential, but health-care professionals must adapt their communication to the education or health/vaccine literacy level of the intended audience (Michel & Ecarnot, 2021, p. 5). Once again education is key. Nurses are one of the most trusted professions and patients do listen to nurses. Nurses can help provide patients with accurate scientific information in a way they can understand. Proper education can help patients make well informed decisions. It is also important for healthcare providers to not force their own opinions onto patients. 
Michel, J.-P., & Ecarnot, F. (2021). Healthy ageing and vaccines: Application of the P4 medicine concept to immunizations. Gerontology, 17.