Vaccinations are primarily known for protecting people against infectious diseases, but emerging research suggests they may also provide benefits for cardiovascular health. Recent findings indicate that some routine adult vaccines could be associated with lower rates of heart-related complications, particularly among older adults and people who already have cardiovascular conditions.
How Infections Can Affect the Heart
Certain viral infections can place additional stress on the cardiovascular system. The body’s inflammatory response during an infection may affect blood vessels and increase the risk of complications in people who are already vulnerable to heart disease.
Reducing the likelihood of severe infections may therefore have benefits beyond preventing the original illness. This is one reason researchers and medical professionals are examining the relationship between vaccination and cardiovascular outcomes.
What Research on Shingles Vaccination Found
A study published compared adults aged 60 and older who received a newer shingles vaccine with those who received an older version. Over a seven-year follow-up period, the group that received the newer vaccine had lower rates of ischaemic heart disease and heart failure.
The findings suggest a possible additional cardiovascular benefit. However, the study did not prove that the vaccine directly caused the reduction, and further research is needed to understand the relationship.
Other Vaccines and Heart Health
Influenza, COVID-19 and respiratory syncytial virus (RSV) infections can also lead to serious complications, particularly in older adults and people with existing health conditions. Preventing severe infections may help reduce the risk of complications that place extra strain on the heart.
Vaccination decisions should be based on age, medical history and current clinical recommendations. People with existing heart conditions can discuss suitable vaccines with their healthcare professionals.
What People Should Know
The research highlights a potential connection between infection prevention and cardiovascular health, but vaccines should not be considered a replacement for other heart-protective habits.
Regular physical activity, balanced nutrition, avoiding tobacco and managing blood pressure and cholesterol remain important parts of cardiovascular care. Vaccinations can complement these measures when recommended by a healthcare professional.
