Following reports that former New York City Mayor Rudy Giuliani, 81, was hospitalized with pneumonia this week, it might be time for a reminder of the very real risks of this condition, which can be particularly deadly for individuals aged 65 and older.
Understanding Pneumonia
Pneumonia is a common bacterial lung disease that leads to 225,000 hospitalizations each year, according to the American Lung Association. However, one group is ten times more likely to be hospitalized with the condition than other adults and significantly more likely to face deadly outcomes.
Dr. Panagis Galiatsatos, assistant professor at the Johns Hopkins School of Medicine and author of “Medicine for the Greater Good,” explained: “A pneumonia implies that there is an infection resulting in inflammation in the lung tissue. Our lungs are not sterile. There’s a big microbiome there. But when an infection causes inflammation, that’s pneumonia.”
Why Are Elderly Populations at Higher Risk?
The severity of pneumonia depends on two factors: the type of infection and the host’s immune response. Some infections are benign, like mycoplasma causing “walking pneumonia,” while others are more aggressive, such as MRSA or streptococcus. Viral infections like flu, RSV, and COVID-19 can also lead to pneumonia.
As people age, their immune system weakens. “When you’re a young adult, the immune system is at its peak,” Galiatsatos said. “As you get older, that same immune system gets weaker. Chronic conditions like diabetes further weaken it. So bugs that are innocent when you’re younger can be lethal as you age.”
The risk increases with age: an 80-year-old has a higher risk than a 65-year-old. Elderly populations are also susceptible to severe pneumonia, with a mortality rate as high as 20%, according to guidelines from the Infectious Diseases Society of America and the American Thoracic Society.
Prevention Strategies
Pneumonia is not inevitable. There are key ways older people can protect themselves:
Vaccination
Galiatsatos emphasized vaccinating against flu, SARS-CoV-2, RSV, and pneumococcal disease. “Vaccinate as much as you can for the bugs we can,” he said. Vaccines provide a “playbook” for the immune system, helping it recognize and fight infections. Even young people benefit: “If you build antibodies over 30 years from the flu vaccine, you may have an advantage against a new strain.”
Manage Chronic Conditions
Older adults should manage health conditions that weaken the immune system, such as diabetes, heart disease, and lung disease. Keeping these under control and consulting with doctors about personalized pneumonia prevention strategies is crucial.
Lifestyle Changes
A nutritious diet, ample hydration, regular exercise, and avoiding smoking or vaping strengthen the lungs and immune system. Hydration helps lubricate airways to clear out pathogens.
Public Health Practices
Wash hands, stay home when sick, and wear masks around vulnerable individuals. Galiatsatos advised: “If you’re visiting a grandparent and have sniffles, wear a mask or cancel the visit. Tell loved ones: ‘If you’re not feeling well, stay home. Don’t spread germs.’” He warned that young people may feel fine but can transmit infections to older adults, causing severe illness.
