Why did blastomycosis cases increase in some areas during the pandemic?
Blastomycosis is a fungal infection that grows in damp soil and decaying wood. During the COVID-19 pandemic, many people changed their daily routines, leading to more exposure to the fungus in certain regions. A surveillance report from the U.S. tracked these fungal infections and noted a rise in cases during this time 3.
What the research says
The increase in cases was linked to changes in human behavior. People spent more time outside their homes, often in areas where the fungus naturally lives. This included places with damp soil or decaying wood, which are the main sources of the infection 3.
Researchers found that the fungus becomes airborne when soil is disturbed. Activities like gardening, hiking, or working in construction can kick up spores. During the pandemic, more individuals engaged in outdoor activities without the usual restrictions, increasing their risk of inhaling the spores 3.
Some outbreaks also occurred in specific workplaces. For example, an outbreak was reported among workers at a paper mill in Michigan, showing how certain jobs can lead to higher exposure 2. The 2019 data provided a baseline to compare against these pandemic-era trends, highlighting the shift in case numbers 1.
What to ask your doctor
- What outdoor activities in my area might increase my risk of blastomycosis?
- Should I wear a mask when working in damp soil or near decaying wood?
- What are the early symptoms of blastomycosis that I should watch for?
- How can I reduce my exposure to fungal spores in my daily routine?
This question is drawn from common patient questions about Infectious Disease and answered using cited medical research. We do not provide individualized advice.