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Case Report
 
Acute Hepatitis-A with COVID-19: Is it coinfection or Mere a Coincidence
Keywords :
Anil Tambe1, Pankaj Nawghare2, Padmaja Biradar3, Pravin M. Rathi2, Surbhi Rathi3
1Department of Gastroenterology, Jagjivan Ram Hospital, Mumbai. 2Department of Gastroenterology, 3Department of Pediatrics, B.Y.L. Nair Charitable Hospital & T.N. Medical College, Mumbai.


Corresponding Author
:
Dr Pankaj Nawghare
Email: pankaj9ghare21@gmail.com


DOI: http://dx.doi.org/

In December 2019, a cluster of pneumonia cases caused by Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel virus, emerged in Wuhan, China.1 The disease showed rapid spread globally and is recognized as a global pandemic by the World Health Organization. Coronavirus typically presents with symptoms of viral pneumonia and primarily manifests as a pulmonary disease. However, increasing data suggests the involvement of multiple organ systems, including the gastrointestinal tract and liver, with more than 60% of patients presenting with GI symptoms and significant proportion of cases presenting with deranged liver function tests.2

Case Report

A 6 years old boy presented to the hospital with complaints of yellowish discoloration of eyes since 10 days, and high colored urine. On enquiry, there was a history of fever; present since, 10-12 days, mild to moderate grade, intermittent, and pain in abdomen since, 5 days. There was no history of cough, sore throat, breathlessness, vomiting, loose stools and no h/o jaundice in the past.
On presentation, he was vitally stable, temperature was 37.2 °C. Mild pallor and icterus was present. Abdominal examination was suggestive of right hypochondriac tenderness, with hepatomegaly, 4 cm palpable below right coastal margin, soft in consistency. There was no splenomegaly or ascites. Respiratory system examination was normal. Other systemic examinations were unremarkable.
Laboratory results are depicted in table 1. An abdominal sonogram revealed a mildly enlarged liver with normal echotexture. Serological tests were performed, Hepatitis A IgM was positive. In view of persistent fever during hospital stay, further evaluation was done. Urine routine/microscopy and blood culture were negative, Chest x-ray was normal. However, nasopharyngeal swab taken for the SARS CoV PCR test was positive.




The patient was managed conservatively with symptomatic treatment. He improved during the hospital stay, and fever subsided. Repeat laboratory investigation was suggestive of a decreasing trend of the liver enzymes and serum bilirubin levels. Repeat nasopharyngeal swab for SARS CoV-2 PCR test, after 10 days was negative. The patient was discharged with home quarantine for 7 days and follow-up on OPD basis. During the follow-up visit he did not have any complaints and repeat LFT was normal.

Discussion

Studies about the relationship between underlying mechanisms of COVID-19 and liver dysfunction are evolving. COVID-19 uses the angiotensin-converting enzyme 2 (ACE2) as the binding site to enter the host cell3 and Chai et al, found that both liver cells and bile duct cells express ACE2.4 The spectrum of liver injury ranges from asymptomatic abnormalities in liver biochemistry to acute liver failures in rare cases. The purported mechanisms for hepatic manifestations include, the possibility of direct cytopathic effect of the virus, liver injury related to accentuated immune response (cytokine storm) and immune mediated damage, drug toxicity, and ischemic hepatitis.5
Liver injury in the setting of COVID-19 presents a unique dilemma to the clinician. There is often an uncertainty regarding a preexisting undiagnosed liver disease. Many drugs used to treat moderate to severe COVID-19 cases have their own profiles of liver toxicity. Multiple cases of underlying chronic liver disease (Hepatitis B, Hepatitis C, NAFLD, Alcoholic cirrhosis) with COVID 19 and its clinical implications have been described. The incidence of liver injury in COVID 19 patients ranged from 58% to 78%, mainly indicated by elevated AST, ALT, and total bilirubin levels accompanied by slightly decreased albumin levels, with a higher proportion being present in severe COVID-19 cases.6 The range of AST and ALT elevation is usually mild 
(ie, <5 times the upper limit of normal); however, higher aminotransferase levels and severe acute hepatitis have also been reported.7 The pattern of elevation is often AST greater than ALT. The presence of liver injury during the COVID 19 infection has been associated with increased complication and high risk of mortality. When comparison of severe with non-severe COVID-19 cases was done, liver function abnormalities like hypoalbuminemia, GGT, and aminotransferase and bilirubin elevations were more frequent in those with severe disease5.
Hepatitis A virus (HAV) infection is a widespread disease, accounting for 1.4 million cases annually worldwide. In high endemic areas the reported incidence of HAV may reach 150 per 100,000 per year8. It has a feco-oral mode of transmission. Clinical manifestations of symptomatic HAV infection vary from mild illness to fulminant hepatitis8. Although co-infection of Hepatitis A with other viruses is known, co-infection with COVID 19 has not been described. 
Children are more likely to have asymptomatic SARS CoV 2 infections and experience mild symptoms.9 A Meta-analysis by Cheung KS, et al, of >4000 East Asian patients with COVID-19 described up to 20% had GI symptoms and viral RNA was detected in the stool of almost 50% of patients.10 Recent reports further suggest persistence of fecal viral shedding after symptom resolution in children.11 Study by Santos VS, et al showed that children with COVID-19 had persistent fecal viral RNA shedding, even after RT-PCR tests of respiratory tract had become negative. The duration of SARS CoV-2 RNA shedding was longer in fecal than respiratory samples with a mean difference of 8.6 days (95% CI 1.7 to 15.4).12
Currently, many trails and investigations indicate the strong relationship between other viruses, bacteria, fungi, and SARS CoV-2. On review of limited literature to date, our case appears to be the first reported case of COVID-19 infection presenting with coinfection with hepatitis A virus. Common route of infection (feco-oral) may be a possible explanation for coinfection of COVID-19 and hepatitis A. Although elevated liver biochemistries are commonly seen in hospitalized patients with COVID-19, it should not be assumed that these findings are a manifestation of COVID-19. So, it is important to rule out coinfection with hepatitis virus as it may impact management and clinical outcome of COVID-19 patients. Such patients should be isolated from other patients to prevent transmission of infection. We also encourage patients to be vaccinated against hepatitis A to reduce the risk of coinfection. 

References
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