Causes and Risk Factors. Most cases of walking (or atypical as it sometimes categorized by medical professionals) pneumonia are precipitated by three different types of bacteria, mycoplasma, chlamydophilia and legionella. Mycoplasma is the most common strain, impacting both adults and young people. Chlamydophilia impacts mainly children. Unlike the other two strains, legionella is not spread by person to person contact. However, healthcare professionals opine that this form is potentially the most serious of the three and might necessitate hospitalization.
Individuals frequenting publically visited institutions like workplaces and schools are at greater risk for developing the mycoplasma and chlamydophilia strains because these maladies are easily spread through person to person contact and can live on often touched surfaces for extended durations. The legionella form, which manifests in a condition known as Legionaire’s disease, typically grows and multiplies in hot water and individuals contract the pathogen by breathing infiltrated air. Additionally, those at greater risk for developing a case of walking pneumonia include elderly persons, the very young, people with compromised immune systems, as well as individuals with preexisting lung and heart issues.