Benefits of Vaccines in Preventing Cancer and Other Chronic Diseases
Vaccines have long been known as the primary shield against infectious diseases. However, recent findings from public health experts show that the function of vaccines is far broader. Vaccines can prevent deadly chronic diseases, including several types of cancer, dementia, and heart disorders.
Richard Martinello, Chief Medical Officer at Yale School of Medicine, stated that medical understanding has now evolved. Vaccines no longer only protect against the target disease but also provide systemic protection that prevents long-term complications which damage the body.
The Human Papillomavirus (HPV) vaccine has been clinically proven as a cancer-preventing vaccine. HPV infection is the main cause of cervical cancer and contributes to other genital cancers as well as head and neck cancers.
A 2024 study of 3.5 million people found a drastic reduction in HPV-related cancer cases among those who received immunisation. In fact, the mortality rate from cervical cancer in women under the age of 25 has plummeted by more than 60% in recent years thanks to massive vaccination programmes.
The shingles vaccine has been found to have a close link with cognitive health. Research in Wales involving 280,000 adults showed that this vaccine reduced the risk of developing dementia by 20% over a seven-year period.
Additionally, data from South Korea indicates that shingles vaccine recipients had a 23% lower risk of cardiovascular problems such as stroke and heart failure. This proves that preventing virus reactivation in the nervous system can protect other vital organs.
The Hepatitis B virus is a major risk factor for cirrhosis and liver cancer. Vaccination from infancy is the most effective way to ensure lifelong protection. Experts emphasise that preventing this viral infection in childhood directly breaks the chain of cancer cell development in adulthood.
Flu, COVID-19, and RSV vaccines are crucial for individuals with chronic conditions such as diabetes or kidney disease. Severe respiratory infections often trigger intense inflammation that worsens heart conditions.
A study in England involving 46 million adults observed that the incidence of heart attacks and strokes decreased significantly after the public received COVID-19 vaccinations. Vaccines help maintain the stability of the body’s condition so that comorbidities do not experience sudden exacerbation or deterioration.
Bacterial vaccines, such as those for meningitis and pneumonia, not only save lives from acute infections but also prevent chronic disability. Untreated meningitis complications can lead to hearing loss, brain damage, and permanent kidney failure.
With these research advances, vaccination is now viewed as a long-term health investment for a better quality of life in old age, rather than merely a medical procedure during an outbreak.