Histoplasmosis: A Plain-Language Guide for Grand Rapids, Michigan

Histoplasmosis in Grand Rapids, Michigan

Histoplasmosis is a lung infection caused by breathing in microscopic spores of a fungus called Histoplasma that lives in the environment. This fungus is most common in the central and eastern United States, particularly the Ohio and Mississippi River valleys, so it is a condition West Michigan residents should know about, especially if you garden, farm, work in construction, or travel. If you have spent time disturbing soil or droppings and then develop pneumonia-like symptoms, this guide can help you understand what to watch for and when to reach out to a Grand Rapids healthcare provider.

What Histoplasmosis Is

Histoplasmosis is an infection of the lungs caused by tiny fungal spores you breathe in from the environment. You cannot catch it from another person or from your pets — it is not contagious and does not spread from person to person or between people and animals.

The Histoplasma fungus lives in soil, especially soil that contains large amounts of bird or bat droppings. When that contaminated soil or droppings get disturbed, the spores become airborne and can be inhaled.

How People Get It

People get histoplasmosis by breathing in spores that float into the air when soil or droppings are stirred up. Many everyday activities can increase your exposure:

• Disturbing or digging in soil
• Cleaning chicken coops
• Exploring caves
• Demolishing or remodeling old buildings
• Gardening, farming, and landscaping

The good news is that most people who breathe in the spores do not get sick at all.

Symptoms to Watch For

When symptoms do appear, they usually show up between 3 and 17 days after a person breathes in the spores. Common symptoms include:

• Fever
• Cough
• Fatigue
• Chills
• Headache
• Chest pain
• Body aches

These symptoms can feel a lot like other respiratory infections, which is one reason histoplasmosis is sometimes overlooked.

How Long It Lasts

In most healthy people, mild histoplasmosis goes away on its own within a few weeks to a month, without any treatment. The body clears the infection naturally.

However, some people can develop a more severe or long-lasting (chronic) illness. In certain cases, the infection can spread beyond the lungs to other parts of the body — this is called disseminated disease and is more serious.

Who Is at Higher Risk

Some people are more likely to develop severe histoplasmosis. You may be at higher risk if you:

• Have a weakened immune system, such as people with HIV/AIDS
• Take immune-suppressing medications
• Are an infant
• Are an older adult

If you fall into one of these groups and develop respiratory symptoms, it is especially important to talk with a healthcare provider promptly.

Lowering Your Risk in West Michigan

Whether you are cleaning out an old barn, remodeling a home, or working on a landscaping project, a few simple steps can help reduce your exposure:

• Avoid disturbing soil or droppings in high-risk areas, such as places with large amounts of bird or bat droppings.
• Have large accumulations of bird or bat droppings cleaned up by professionals rather than tackling them yourself.
• Wear an N-95 respirator when doing high-risk work like construction or excavation.

These precautions are especially worth keeping in mind during gardening and outdoor work seasons in Grand Rapids.

How It Is Treated

Mild cases often need no treatment at all and clear up on their own. Severe infections, though, are treated with prescription antifungal medications such as itraconazole or amphotericin B.

Treatment can last anywhere from 3 months up to a year, depending on how severe the infection is. A healthcare provider will determine the right medication and length of treatment for your situation.

When to See a Doctor in Grand Rapids

See a healthcare provider if you develop pneumonia-like or respiratory symptoms, especially if either of these applies to you:

• You recently spent time in an area where the fungus is common.
• Your symptoms have not improved even after taking antibiotics.

In these situations, you can be tested for histoplasmosis. Grand Rapids residents have several options for care, including primary care providers and clinics at Corewell Health, Trinity Health Grand Rapids, University of Michigan Health-West, and Cherry Health. For broader public health questions, the Kent County Health Department is a helpful local resource. If you ever experience a true medical emergency, such as severe difficulty breathing, call 911 right away.

Most people who breathe in Histoplasma spores stay healthy, and mild cases usually resolve on their own. Knowing the symptoms and risks helps you act early and get tested when it matters.