As we move into spring season, immunity gained through earlier COVID-19 vaccination can start to drop. The virus, although no longer causing widespread lockdowns, is still a significant health hazard, particularly to older adults and those with weakened immune systems. To keep vulnerable people safe, the NHS is once again rolling out the COVID-19 'Spring Booster' jab in 2025.It has been five years ago that the world fell prey to the COVID-19 pandemic. During the bizarre and bewildering days of early 2020, a frightening new virus turned our world upside down. At that time, it seemed certain that everything about our lives, the manner in which we lived, breathe, speak, meet, attend colleges, offices, schools, would be irreversibly altered. Five years on, although the burden of COVID-19 was catastrophic, killing 220,000 in the UK and 7 million globally, we cannot dismiss how it affected in our social attitudes, faith, relationships, and these all are still unraveling.This article considers the eligibility, the urgency of booster jabs, and how you can book an appointment if you're eligible.The COVID-19 vaccine has been instrumental in preventing severe illness, hospitalization, and death. Figures released by the UK Health Security Agency (UKHSA) from last spring's booster campaign indicated that those vaccinated were 45% less likely to be hospitalized with COVID-19. This demonstrates the booster's ability to prevent severe illness and aid public health measures.Though COVID-19 no longer controls daily life, the virus still presents considerable threats, especially to high-risk groups. The booster dose acts as a safety net, keeping immunity levels high against new variants.Who is Eligible for the 2025 Spring Booster?Eligibility for the 2025 spring booster continues to be in line with previous years, with a special emphasis on high-risk groups. The following are eligible:Adults 75 years and over: If you are 74 but will be 75 by June 17, 2025, you are still eligible for the booster.Care home residents for older adults: Due to the increased risks in group living environments, care home residents are eligible for the booster.People aged six months and above with a weakened immune system: Immunocompromised individuals, such as those receiving certain medical treatments, are eligible for the booster.These are the eligibility criteria for all four countries of the UK—England, Scotland, Wales, and Northern Ireland.Booking Your Spring Booster AppointmentThe NHS has simplified booking the booster dose for eligible people. The 2025 spring vaccination campaign will take place from April to June, with slightly different timetables throughout the UK:England: April 15 – June 30Scotland: April 15 – June 30Wales: April 15 – June 30Northern Ireland: 15 April – 30 JuneThe NHS will invite you by text, email, app reminder, or letter. You don't need to wait to be invited—appointments are available to book directly through the NHS website, the NHS app, or on 119.Also, most pharmacies provide private COVID-19 jabs for individuals who are not eligible for the free NHS booster but would like to boost their immunity.Which COVID-19 Vaccines Are Being Used?The NHS will be using vaccines from two main manufacturers:Pfizer-BioNTechModernaBoth vaccines have been shown to offer robust protection against severe illness and hospitalization. The NHS recommends that people accept the vaccine that is provided, as both are of high safety and efficacy standards.What is Immunosuppression and Eligibility?People with weakened immune systems might experience confusion in assessing eligibility. Immunosuppression can be caused by several medical conditions and treatments, and not all immunocompromised patients automatically fall under NHS eligibility.The Green Book, which is published by the UKHSA, provides detailed eligibility criteria for immunosuppressed individuals. Those who generally qualify are:Organ, bone marrow, or stem cell transplant recipientsPatients receiving chemotherapy or radiotherapyPatients receiving immunosuppressive or immunomodulating therapyThose with systemic steroid use of more than one monthHIV-positive individualsIndividuals with genetic disorders of the immune systemFor a full list and more information, individuals can go to nhs.uk/get-vaccine.Should You Get the COVID-19 Booster Shot?Getting the COVID-19 spring booster is a proactive measure to protect personal and public health. Being up to date with vaccines, high-risk groups substantially reduce their risk of severe illness and hospitalization.While younger, healthier populations may not require regular boosters, older adults and immunocompromised individuals benefit greatly from enhanced immunity. With millions of people eligible across the UK, widespread participation in the booster campaign will help maintain community protection and prevent undue strain on healthcare services.The COVID-19 pandemic might have entered an endemic phase, but the virus remains dangerous to vulnerable persons. The 2025 spring booster provides a necessary layer of protection for those at higher risk and continues to provide immunity against severe illness.If you or a loved one are eligible for the booster, make an appointment as soon as possible. Whether through the NHS or private clinicians, this easy action can ensure a real difference in your health and wellbeing.Disclaimer: The article is for information purpose only and was sourced and updated as per the UKHSA website. Consult a healthcare professional before getting vaccinated.