Fungal infection
Medical condition
Mucormycosis Other names Zygomycosis,[ 1] [ 2] black fungus[ 3] [ 4] Periorbital mucormycosis Specialty Oral and maxillofacial surgery , Infectious disease , Emergency medicine Symptoms Depends on location: runny nose, black area of skin, facial swelling, headache , fever , cough, blurred vision[ 5] [ 6] Complications Blindness, thrombosis [ 7] Usual onset Rapid[ 1] Types Sinuses and brain , lung , stomach and intestine , skin , disseminated, miscellaneous[ 8] Causes Fungi of the Mucorales type[ 8] Risk factors Diabetes , iron overload , low white cells , cancer , organ transplant , kidney problems , immunosuppressants , long-term steroids [ 7] Diagnostic method Biopsy , culture , medical imaging [ 5] Differential diagnosis Orbital cellulitis , cavernous sinus thrombosis , aspergillosis [ 9] Prevention Face masks , avoiding contact with soil or water-damaged buildings, good diabetic control[ 7] [ 10] Treatment Antifungals , surgical debridement , treat underlying medical conditions [ 7] Medication Amphotericin B , isavuconazole , posaconazole [ 8] Prognosis Poor[ 9] Frequency Rare[ 8]
Mucormycosis , also known as black fungus ,[ 3] [ 4] is a serious fungal infection that comes under fulminant fungal sinusitis ,[ 11] usually in people who are immunocompromised .[ 9] [ 12] It is curable only when diagnosed early.[ 11] Symptoms depend on where in the body the infection occurs.[ 13] [ 14] It most commonly infects the nose , sinuses , eyes and brain resulting in a runny nose , one-sided facial swelling and pain, headache , fever , blurred vision , bulging or displacement of the eye (proptosis), and tissue death .[ 1] [ 6] Other forms of disease may infect the lungs , stomach and intestines , and skin .[ 6] The fatality rate is about 54%.
It is spread by spores of molds of the order Mucorales , most often through inhalation , contaminated food, or contamination of open wounds .[ 15] These fungi are common in soils, decomposing organic matter (such as rotting fruit and vegetables), and animal manure , but usually do not affect people.[ 16] It is not transmitted between people.[ 14] Risk factors include diabetes with persistently high blood sugar levels or diabetic ketoacidosis , low white blood cells , cancer , organ transplant , iron overload , kidney problems , long-term steroids or use of immunosuppressants , and to a lesser extent in HIV/AIDS .[ 7] [ 9]
Diagnosis is by biopsy and culture , with medical imaging to help determine the extent of disease.[ 5] It may appear similar to aspergillosis .[ 17] Treatment is generally with amphotericin B and surgical debridement .[ 8] Preventive measures include wearing a face mask in dusty areas, avoiding contact with water-damaged buildings, and protecting the skin from exposure to soil such as when gardening or certain outdoor work.[ 10] It tends to progress rapidly and is fatal in about half of sinus cases and almost all cases of the widespread type.[ 2] [ 18]
Mucormycosis is usually rare,[ 8] but is now ~80 times more common in India.[ 19] People of any age may be affected, including premature infants .[ 8] The first known case of mucormycosis was possibly the one described by Friedrich Küchenmeister in 1855.[ 1] The disease has been reported in natural disasters , including the 2004 Indian Ocean tsunami and the 2011 Joplin tornado .[ 20] During the COVID-19 pandemic , an association between mucormycosis and COVID-19 has been reported. This association is thought to relate to reduced immune function during the course of the illness and may also be related to glucocorticoid therapy for COVID-19.[ 4] [ 21] A rise in cases was particularly noted in India.[ 22]
^ a b c d Cite error: The named reference Chand2018
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^ a b "Orphanet: Zygomycosis" . www.orpha.net . Archived from the original on May 13, 2021. Retrieved May 13, 2021 .
^ a b Dyer O (May 2021). "Covid-19: India sees record deaths as "black fungus" spreads fear" . BMJ . 373 : n1238. doi :10.1136/bmj.n1238 . PMID 33985993 .
^ a b c Quarterly Current Affairs Vol. 4 – October to December 2020 for Competitive Exams . Vol. 4. Disha Publications. 2020. p. 173. ISBN 978-93-90486-29-8 .
^ a b c Grossman ME, Fox LP, Kovarik C, Rosenbach M (2012). "1. Subcutaneous and deep mycoses: Zygomucosis/Mucormycosis" . Cutaneous Manifestations of Infection in the Immunocompromised Host (2nd ed.). Springer. pp. 51–58. ISBN 978-1-4419-1577-1 .
^ a b c "Symptoms of Mucormycosis" . www.cdc.gov . January 14, 2021. Retrieved May 25, 2021 .
^ a b c d e Spellberg B, Edwards J, Ibrahim A (July 2005). "Novel perspectives on mucormycosis: pathophysiology, presentation, and management" . Clinical Microbiology Reviews . 18 (3): 556–569. doi :10.1128/CMR.18.3.556-569.2005 . PMC 1195964 . PMID 16020690 .
^ a b c d e f g "Mucormycosis" . NORD (National Organization for Rare Disorders) . Archived from the original on May 26, 2021. Retrieved May 25, 2021 .
^ a b c d Hernández, J. L.; Buckley, C. J. (January 2021). Mucormycosis . PMID 31335084 .
^ a b "People at Risk For Mucormycosis and prevention" . www.cdc.gov . February 2, 2021. Retrieved May 25, 2021 .
^ a b Cite error: The named reference :0
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^ Cite error: The named reference John2017
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^ "ICD-11 – ICD-11 for Mortality and Morbidity Statistics" . icd.who.int . Retrieved May 25, 2021 .
^ a b Cite error: The named reference CDC2021About
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^ Reid G, Lynch JP, Fishbein MC, Clark NM (February 2020). "Mucormycosis". Seminars in Respiratory and Critical Care Medicine . 41 (1): 99–114. doi :10.1055/s-0039-3401992 . PMID 32000287 . S2CID 210984392 .
^ "Where Mucormycosis Comes From" . www.cdc.gov . February 1, 2021. Retrieved May 25, 2021 .
^ Cite error: The named reference Thornton2020
was invoked but never defined (see the help page ).
^ "Mucormycosis Statistics | Mucormycosis | Fungal Diseases | CDC" . www.cdc.gov . May 5, 2020. Retrieved May 25, 2021 .
^ Skiada A, Pavleas I, Drogari-Apiranthitou M (November 2020). "Epidemiology and Diagnosis of Mucormycosis: An Update" . Journal of Fungi . 6 (4): 265. doi :10.3390/jof6040265 . PMC 7711598 . PMID 33147877 .
^ Dannaoui E, Lackner M (December 2019). "Special Issue: Mucorales and Mucormycosis" . Journal of Fungi . 6 (1): 6. doi :10.3390/jof6010006 . PMC 7151165 . PMID 31877973 .
^ Cite error: The named reference Garg2021
was invoked but never defined (see the help page ).
^ Singh AK, Singh R, Joshi SR, Misra A (May 2021). "Mucormycosis in COVID-19: A systematic review of cases reported worldwide and in India" . Diabetes & Metabolic Syndrome . 15 (4): 102146. doi :10.1016/j.dsx.2021.05.019 . PMC 8137376 . PMID 34192610 .