What Is Aspergillus Fumigatus? Deadly Fungus Spreading In US That ‘Eats You From Inside Out’

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Last Updated:June 18, 2025, 22:22 IST

Aspergillus Fumigatus is now being detected with increasing frequency in Florida, Louisiana, Texas, Georgia and California.

The US Centers for Disease Control and Prevention (CDC) issued precautionary advice to reduce the risk of exposure to Aspergillus fumigatus.(Shutterstock File Photo)

Health experts are raising concerns over the rapid spread of a deadly airborne fungus, Aspergillus fumigatus, across parts of the United States. The pathogen, which causes a potentially fatal lung infection called aspergillosis, poses a heightened threat as rising temperatures create ideal conditions for its growth, experts warned.

The fungus is now being detected with increasing frequency in Florida, Louisiana, Texas, Georgia and California- states where warm and humid environments allow it to thrive- Daily Mail reported. The World Health Organization labeled Aspergillus fumigatus a “critical priority" pathogen, citing its growing resistance to treatment and high mortality rates.

What Is Aspergillus Fumigatus And Its Symptoms?

Once inhaled, the fungus can lead to serious respiratory infections, particularly in people with weakened immune systems or pre-existing lung conditions. Symptoms can escalate rapidly, potentially resulting in organ failure or death, especially among cancer patients, transplant recipients and those recovering from severe influenza. Individuals undergoing chemotherapy, long-term corticosteroid therapy or AIDS patients are considered especially vulnerable. The fungus is commonly found in soil, compost piles and damp environments, where it can survive temperatures as high as 120°F.

What CDC Said On Spread Of Aspergillus Fumigatus?

The US Centers for Disease Control and Prevention (CDC) issued precautionary advice to reduce the risk of exposure to Aspergillus fumigatus. While these measures cannot guarantee full protection, they are recommended- especially for those with weakened immune systems or existing respiratory conditions, the health body said.

The CDC advises people to avoid dusty areas such as construction sites. If exposure is unavoidable, wearing an N95 mask is recommended. During outdoor activities like gardening, individuals should wear long-sleeved clothing, full-length pants and closed-toe shoes and ideally avoid direct contact with soil or compost. In case of any cuts or abrasions, the area should be washed immediately with soap and water to reduce the risk of infection.