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Can Vaccines Promote Herd Immunity Discussion Chapter

Adult Influenza Vaccine

Introduction

Influenza is a contagious respiratory illness caused by influenza viruses that affects millions of people globally every year and can cause morbidity and mortality among older adults and those with underlying health conditions (Javanian et al., 2021). Vaccination is considered by many in the medical community to be the best preventive measure against influenza. This discussion will focus on the influenza vaccine and look at its safety concerns and clinical effectiveness in promoting health across the lifespan, especially in adults and the older populations.

Clinical Effectiveness of the Influenza Vaccine

The clinical effectiveness of the influenza vaccine varies with age and health status (Lee et al., 2021). In healthy adults, the vaccine's efficacy can range from 40% to 60%, depending on the match between the vaccine strains and the circulating strains of the virus. For older adults, the efficacy tends to be lower due to immunosenescence, which is a decline in immune function with age (Lee et al., 2021). However, the vaccine can still be viewed by medical providers as beneficial for the elderly because of the claims that it significantly reduces the severity of illness, the need for hospitalization, and the risk of complications such as pneumonia and any worsening of already existing chronic conditions (Tenforde et al., 2021).

The widespread use of the influenza vaccine is also believed to be a contributor to herd immunity, which is said to reduce the overall circulation of the virus in the community (Marlowe et al., 2022). This effect protects vulnerable populations, including infants who are too young to be vaccinated and people with compromised immune systems. Annual vaccination is recommended...

Researchers have argued that vaccination can prevent millions of flu cases and thousands of hospitalizations and deaths each...
…in preventing flu in older adults compared to standard-dose vaccines (Lee et al., 2021).

Adults with chronic conditions such as diabetes, heart disease, and respiratory illnesses are at increased risk of severe influenza-related complications. Since the medical community believes that influenza vaccination can help as a component of chronic disease management by preventing hospitalizations, they recommend high vaccination coverage for elderly people as a public health priority (Lee et al., 2021).

Conclusion

It is also helpful to support a culture of lifelong immunization, which is why public health campaigns and healthcare providers focus so much on educating people about the importance of getting their annual influenza vaccine. This is particularly important for older adults, who may have concerns about vaccine safety and efficacy. Clear communication about the benefits and risks of vaccination can help improve uptake rates. Vaccine hesitancy could be one barrier caused by distrust of the medical community and its position on vaccine safety, particularly after COVID; however, it is unclear as to whether the elderly population has the same concerns about…

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References

Javanian, M., Barary, M., Ghebrehewet, S., Koppolu, V., Vasigala, V., & Ebrahimpour, S.

(2021). A brief review of influenza virus infection. Journal of medical virology, 93(8), 4638-4646.

Koike, H., & Katsuno, M. (2021). Emerging infectious diseases, vaccines and Guillain–Barrésyndrome. Clinical and Experimental Neuroimmunology, 12(3), 165-170.

Lee, J. K., Lam, G. K., Shin, T., Samson, S. I., Greenberg, D. P., & Chit, A. (2021). Efficacy andeffectiveness of high-dose influenza vaccine in older adults by circulating strain and antigenic match: An updated systematic review and meta-analysis. Vaccine, 39, A24-A35.

Marlowe, E., Pranikoff, S., Borsheim, B., Salafian, K., Halvorson, E. E., & Kram, D. E. (2022).

Pilot study to determine effect of an altruism intervention focusing on herd immunity to enhance influenza vaccination rates. Vaccine, 40(46), 6625-6630.

Tenforde, M. W., Chung, J., Smith, E. R., Talbot, H. K., Trabue, C. H., Zimmerman, R. K., ... &Patel, M. M. (2021). Influenza vaccine effectiveness in inpatient and outpatient settings in the United States, 2015–2018. Clinical Infectious Diseases, 73(3), 386-392.

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