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Diabetes May Increase Risk of ‘Black Fungus’ Post COVID: Experts

Published
Coronavirus
3 min read
Diabetes May Increase Risk of ‘Black Fungus’ Post COVID: Experts

Since the early days of the coronavirus pandemic, patients with diabetes have been in the spotlight for their increased risk of severe Covid-19 outcomes. Now health experts say diabetes, coupled with Covid, may be the reason for the sudden spike in mucormycosis or 'black fungus' infections in the country.

India is known as the world's diabetes capital. Nearly one in six people with diabetes in the world is from India.

Available scientific literature reveals that diabetes damages the pancreatic beta cells and leads to insufficient insulin production, resulting in hyperglycemia - a condition which causes dysfunction of the immune response.

Besides, diabetes medication also suppresses immune responses.

Covid also decreases immunity and the drugs used for its treatment such as steroids and IL-6 inhibitors (tocilizumab) also leads to further immune suppression.
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However, it has become one of the rapidly spreading infections observed in those recovering from Covid-19. India has so far reported approximately cases of 8,848 mucormycosis or black fungus.

The second wave of Covid has been more lethal in India. The country has also seen more persons with diabetes getting affected by Covid - almost 76 per cent, Dr V. Ramana Prasad, senior pulmonologist, KIMS hospital Hyderabad, told IANS.

“Covid-19 itself is more common and severe in diabetic patients, and there is high likelihood that diabetic patients who developed Covid required ICU admission and use of drugs like steroids and tocilizumab. Such drugs also decrease immunity and make an individual more prone to opportunistic infection like mucormycosis.”
Dr Asmita Mehta, Head, Department of Respiratory Medicine at Amrita Hospital, Kochi

Mucormycosis was present even in the pre-Covid era, but is an opportunistic infection. The fungal infection is caused by a group of molds called mucormycetes. These molds live throughout the environment. Mucormycosis mainly affects people with damaged tissue or decreased immunity.

India has a very high incidence of mucormycosis cases when compared to other countries even prior to Covid. The incidence of mucormycosis in India is around 14/100,000 population while that in Australia is 0.06/100,000 population.

The reason behind this is India's hot humid climate where the spores of mucor survive for a longer time.

Gujarat has reported maximum of 2,281 mucormycosis cases followed by Maharashtra (2,000), Andhra Pradesh (910), Madhya Pradesh (720) Rajasthan (700), Karnataka (5,00), Haryana (250), Delhi (197), Punjab (95), Chhattisgarh (87), Bihar (56), Tamil Nadu (40), Kerala (36), Jharkhand (27), Odisha (15), Goa (12) and Chandigarh (8).

"Ninety-four per cent of the people who developed black fungus infection after Covid had diabetes and 67 per cent of them had uncontrolled sugars," Mehta told IANS.

“When the sugars are not controlled, the increased level of sugar in blood provides acidic media which is a favourable environment for the growth of black fungus. Thus, the reason behind increased black fungus cases now can be attributed to uncontrolled diabetes and the use of drugs, which causes further decrease in immunity.”
Dr Asmita Mehta, Head, Department of Respiratory Medicine at Amrita Hospital, Kochi

The common symptoms of this fungal infection include unilateral facial swelling, loose teeth, headache, burning sensation in nose, nasal stuffiness, blackish discharge from nose, blurring or double vision.

Few signs of severe mucormycosis infection are decreased vision, blindness, seizure or blood vomiting and altered sensorium.

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In post Covid patients, "Oculo-rhino-cerebral" mucormycosis is most commonly found. Rhino-oculo cerebral mucormycosis (ROCM) is a rare, invasive, and rapidly progressive fungal infection affecting nose, paranasal sinuses and often extending to orbit, brain, and palate.

People who have had moderate to severe Covid illness must avoid crowded places, visiting construction sites, garbage dumping sites or indulge in gardening and should wear masks properly and keep safe distance while interacting with others.

For those who have diabetes, they should try to keep their sugar levels under control. Judicial use of steroids and other immunomodulators in the treatment of Covid-19 has been recommended by all medical bodies, Mehta said.

Maintenance of good hygiene and cleanliness is a must. Regular oral hygiene care with mouthwash, povidone-iodine gargles must be done.

While administering oxygen, water for humidification must be sterile and there should be no leakage from the humidifier, Prasad advised.

But for those infected, early diagnosis is a key point in initiating treatment, as the deadly disease has more than 50 per cent mortality even after best treatment possible.

Early surgical debridement followed by antifungals like liposomal amphotericin B (3-5mg/kg) is the mainstay of treatment.

(This story was published from a syndicated feed. Only the headline and picture has been edited by FIT)

(This story was auto-published from a syndicated feed. No part of the story has been edited by The Quint.)

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