1. Immunosuppression: People with weakened immune systems, such as those with HIV/AIDS, organ transplant recipients, and those receiving chemotherapy, are at higher risk for developing dermatologic manifestations of nocardiosis.
2. Age: Elderly people are more likely to develop nocardiosis than younger people.
3. Exposure to soil: People who work in soil or are exposed to soil, such as farmers, gardeners, and landscapers, are at higher risk for developing nocardiosis.
4. Exposure to animals: People who work with animals, such as veterinarians and animal handlers, are at higher risk for developing nocardiosis.
5. Exposure to contaminated water: People who swim in or drink contaminated water are at higher risk for developing nocardiosis.