Clinical Innovation

Black Fungus Cases Tracked Over 17 Years at Belagavi Hospital: Study Reveals Alarming COVID Link

A 17-year-long medical study from KLES Dr. Prabhakar Kore Hospital has revealed how cases of the deadly “black fungus” infection — medically known as mucormycosis — sharply increased during the COVID-19 pandemic, mainly due to diabetes and excessive steroid use.

The study, led by ENT specialist Dr. Anil S. Harugop and his team, analysed 210 patients treated between 2007 and 2024 for a serious form of the disease called rhino-orbito-cerebral mucormycosis, which affects the nose, eyes and brain.

Big Spike During COVID

The researchers divided patients into three time periods:

  • Before COVID (2007–2018): 65 cases
  • During COVID (2019–2021): 106 cases
  • After COVID (2022–2024): 39 cases

Doctors observed a sudden surge during COVID, mainly because many patients were given high doses of steroids to treat coronavirus infection. In people with diabetes, this created the perfect environment for fungal infection to grow.

Who Is Most at Risk?

The study found that most patients had:

  • Uncontrolled diabetes
  • High blood sugar levels
  • Weak immune systems
  • History of steroid treatment

Doctors explained that high sugar levels and low immunity allow the fungus to spread quickly from the nose to the eyes and sometimes to the brain.

How Were Patients Treated?

Treatment involved:

  • Endoscopic sinus surgery (FESS) to remove infected tissue
  • Antifungal injections (Amphotericin B)

In some cases:

  • Eye socket decompression
  • Removal of part of the palate (roof of mouth)
  • Brain surgery

Despite treatment:

  • 10 patients died across all periods
  • Several developed brain involvement

Warning Signs

Doctors urge people to seek medical help if they notice:

  • Facial pain or swelling
  • Blocked nose with black discharge
  • Swelling around eyes
  • Loss of vision
  • Headache and fever

Early treatment can save life and eyesight.

Key Lesson from the Study

The study concludes that:

“Early diagnosis, quick surgery, control of diabetes, and proper antifungal treatment are the keys to survival.”

It also warns against:

  • Unnecessary steroid use
  • Ignoring blood sugar control
  • Delaying hospital visits

Why India Was Hit Hard

India already has a large diabetic population. During COVID, the combination of:

  • Coronavirus infection
  • Steroid misuse
  • High sugar levels

led to an explosion of black fungus cases, making India one of the worst affected countries.

Hope for the Future

Doctors say that awareness has improved after COVID. Fewer cases are now being seen, and patients are reaching hospitals earlier.

The hospital team thanked ENT surgeons, physicians, radiologists, microbiologists and nephrologists for helping manage this life-threatening disease.

Public Health Message

  • Keep diabetes under control
  • Avoid self-medication with steroids
  • Don’t ignore sinus or eye symptoms
  • Seek early medical care

Black fungus is deadly — but early action saves lives.


Dr. Anil S. Harugop - Senior Consultant ENT

Dr. Anil S. Harugop

Senior Consultant – ENT
KLES Dr. Prabhakar Kore Hospital & MRC & JN Medical College
KLE Academy of Higher Education & Research, Belagavi – 590010

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