Clinical features, treatment and outcomes of an outbreak of type 7 adenovirus pneumonia in centralized residence young adults.

BACKGROUND: Human adenovirus type B7 (HAdV-B7) has been reported to cause pneumonia. However, there are limited data about the epidemiological and clinical features of HAdV-B7 pneumonia in young adults. METHODS: This retrospective observational study included 52 patients diagnosed of human adenovirus B7 pneumonia in Nanjing, China from February 7, 2016, to February 20, 2016. We retrospectively collected and analyzed clinical, laboratory, and radiologic features, treatments and outcomes. RESULTS: The median age of the 52 patients was 19.5 years (IQR 18.0-21.0). The most common symptoms were fever (50, 96.2%), cough (49, 94.2%), and expectoration (48, 92.3%). Most of the routine hematology and blood chemistry parameters were within the normal range. The predominant abnormal patterns seen on chest CT were unilateral (33, 66%), multifocal (36, 72%), and ground-glass opacity (27, 54%), mainly involving the left lower lobes (41 [36.0%] of 114 affected segments). As the disease progressed in the second week after symptom onset, consolidation and mixed patterns became more common, while the ground glass opacity pattern decreased. The single-agent ribavirin therapy group had a significantly shorter duration of nonrespiratory symptoms, and no statistically significant difference was observed between the single-agent methylprednisolone group and the nonglucocorticoid group. CONCLUSIONS: The main symptoms in immunocompetent patients with adenovirus type 7 are fever, cough and sputum, with no significant abnormalities in laboratory tests. Chest CT scan mostly shows a ground-glass opacity at the beginning of the disease, which subsequently changes to a mixed pattern. Ribavirin and glucocorticoids did not shorten the course of disease.

Adenovirus and novel coronavirus (SARS-Cov2) coinfection: A case report.

SARS-Cov2 coinfection with other respiratory viruses is very rare. Adenovirus coinfection is even more unusual. We report the case of a patient with poorly controlled diabetes, and he was admitted to the emergency department because of severe COVID-19 infection. He had unfavorable prognostic factors such as moderate oxygen impairment, positive D-dimer, increased lactate dehydrogenase and ferritin. Adenovirus was isolated in a respiratory viral panel. He developed acute respiratory distress syndrome and required pronation and neuromuscular relaxation in the intensive care unit. Hydroxychloroquine was administered as suggested by the national guidelines. The symptoms resolved, and hospital discharge was indicated. COVID-19 association with another respiratory virus is related with adverse clinical outcomes, such as shock, ventilatory support requirement and greater lymphopenia and thrombocytopenia.