Mucormycosis—The Rising Epidemic in a Pandemic: An Observational Case Study in a Tertiary Care Hospital

Mucormycosis is a rare and ominous fungal disease caused by the order Mucorales fungi. As per Indian data, uncontrolled diabetes is the main risk factor associated with mucormycosis. But during this SARS COV-2 pandemic, a huge rise in the number of mucormycosis cases has been observed in different states in India in last 10-12 months in the second wave. The immune dysfunction caused by this virus and the use of high doses of steroids appears to be a double-edged sword and causes immunosuppression with hyperglycemia, increasing the risk of secondary bacterial and invasive fungal infections (IFIs). Objective We conducted a prospective observational study involving individuals with proven mucormycosis in ABVIMS & Dr RML Hospital, New Delhi. The demographic profile with various clinical presentations, histopathological findings, predisposing factors, management, and final outcomes were recorded. Results We included 53 patients in our study. Rhino-orbital-cerebral mucormycosis was the most common (21/53, 39.6%) presentation followed by rhino-orbital (17/53, 32.0%), rhino-cerebral (10/53, 18.8% ) rhinosinusitis (4/53, 7.5%) and pulmonary involvement in 1/53, (1.8%). The cutaneous involvement was seen in 8 patients (15.0%), disseminated mucormycosis as meningitis in 2 patients (3.7%), and dual fungal infection with aspergillosis was seen in 2 patients (3.7%). The predisposing factors being diabetes mellitus (40/53, 75.4%), with newly diagnosed diabetes in previously undiagnosed (10/ 53, 18.8%), SARS-COV-2 (33/53, 62.2%), steroid intake (30/53, 56.6% ), prolonged hospital stay (29/53, 54.7%), use of oxygen therapy (19/53, 35.8%), and diabetic ketoacidosis in 2 patients (3.7%) Amphotericin B (liposomal form) was the primary therapy in all 53 patients. Hypokalemia (8/53, 15.0%) was seen as side effect of amphotericin-B although renal functions were normal in all patients. Surgical debridement was performed in 43(77.3%) patients and transcutaneous retrobulbar amphotericin-B (TRAMB) was given in 16 patients (30.1%). Total mortality in our study is of 9 patients (16.9%). Conclusions Diabetes mellitus was the dominant predisposing factor in all forms of mucormycosis which also includes newly diagnosed diabetes. Hyperglycemia and immune dysregulation by SARS-CoV-2 and high dose corticosteroid use on large scale served a favorable environment for this invasive fungus.

Health Care Workers and Patients as Trojan Horses: a COVID19 ward outbreak.

BACKGROUND: Transmission in healthcare settings can result in significant infections in healthcare workers and patients. Understanding infection dynamics has important implications for methods employed in hospitals to prevent nosocomial transmission events. METHODS: In this case series report we describe a cluster of COVID-19 (Coronavirus disease 2019) in a tertiary care university hospital, in the early phases of the epidemic, after hospital visiting had been stopped and when the UK lockdown was in place. FINDINGS: A 48 year old patient developed COVID-19 31 days post-admission and four days after admission to a medical ward from ITU. Infection was likely acquired from an asymptomatic or minimally symptomatic healthcare worker (HCW). Subsequent investigation over a 14 day period revealed symptoms in 23 staff members and five linked cases in patients on the same ward.Nine of the 23 affected staff members provided care for and had direct exposure with the index case. Four staff reported caring for the index case without use of personal protective equipment. One was coughed on directly by the patient 24 hours prior to the onset of symptoms. CONCLUSION: SARS CoV2 infection can be introduced to a ward area by asymptomatic and minimally symptomatic healthcare workers. Staff members and patients can act as Trojan horses carrying infection into and around the hospital, setting up unexpected transmission events.Transmission of infection from pre-symptomatic, asymptomatic and minimally symptomatic individuals means that universal use of measures to prevent transmission is required for successful reduction of transmission events in the hospital setting.

Review of chest CT manifestations of COVID-19 infection.

Coronavirus disease-19 (COVID-19) is a viral pandemic that started in China and has rapidly expanded worldwide. Typical clinical manifestations include fever, cough and dyspnea after an incubation period of 2-14 days. The diagnosis is based on RT-PCR test through a nasopharyngeal swab. Because of the pulmonary tropism of the virus, pneumonia is often encountered in symptomatic patients. Here, we review the pertinent clinical findings and the current published data describing chest CT findings in COVID-19 pneumonia, the diagnostic performance of CT for diagnosis, including differential diagnosis, as well the evolving role of imaging in this disease.