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Clinical findings for early human cases of influenza A(H7N9) virus infection, Shanghai, China.

Lu S, Zheng Y, Li T, Hu Y, Liu X, Xi X, Chen Q, Wang Q, Cao Y, Wang Y, Zhou L, Lowrie D, Bao J - Emerging Infect. Dis. (2013)

Bottom Line: A novel strain of influenza A(H7N9) virus has emerged in China and is causing mild to severe clinical symptoms in infected humans.Some case-patients have died.To further knowledge of this virus, we report the characteristics and clinical histories of 4 early case-patients.

View Article: PubMed Central - PubMed

Affiliation: Shanghai Public Health Clinical Center, Shanghai, China. tubercle@shaphc.org

ABSTRACT
A novel strain of influenza A(H7N9) virus has emerged in China and is causing mild to severe clinical symptoms in infected humans. Some case-patients have died. To further knowledge of this virus, we report the characteristics and clinical histories of 4 early case-patients.

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Related in: MedlinePlus

Chest computed tomography (CT) scan and radiograph images of patient (case-patient 1) in a study of 4 persons with early cases of influenza A(H7N9) virus infection, Shanghai, China. Images were taken 1, 5, 7, and 11 days after illness onset. A, B) CT scan images on day 1, showing bilateral pleural effusion but no obvious lesions. C) CT scan image on day 5, showing extensive ground-glass opacity and consolidation. D, E) x-ray images on days 7 and 11, respectively, showing reduced light transmittance on both sides of the lung.
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Figure 1: Chest computed tomography (CT) scan and radiograph images of patient (case-patient 1) in a study of 4 persons with early cases of influenza A(H7N9) virus infection, Shanghai, China. Images were taken 1, 5, 7, and 11 days after illness onset. A, B) CT scan images on day 1, showing bilateral pleural effusion but no obvious lesions. C) CT scan image on day 5, showing extensive ground-glass opacity and consolidation. D, E) x-ray images on days 7 and 11, respectively, showing reduced light transmittance on both sides of the lung.

Mentions: Total leukocyte counts for case-patients 1–4 were within or slightly below reference values: 5.50, 5.95, 3.50, and 4.60 × 109/L, respectively (reference value 4.00–10.00 × 109/L). The proportions of neutrophils were normal or slightly high: 79.6%, 62.6%, 72.4%, and 68.0%, respectively (reference value 50.0%–70.0%). Laboratory test results at admission are shown in Table 2. Radiograph findings mainly included ground-glass opacity and consolidation (Figures 1, 2; Technical Appendix Figures 1, 2). Computed tomography (CT) scans and radiograph findings, along with clinical manifestations and laboratory test results, helped establish early diagnoses.


Clinical findings for early human cases of influenza A(H7N9) virus infection, Shanghai, China.

Lu S, Zheng Y, Li T, Hu Y, Liu X, Xi X, Chen Q, Wang Q, Cao Y, Wang Y, Zhou L, Lowrie D, Bao J - Emerging Infect. Dis. (2013)

Chest computed tomography (CT) scan and radiograph images of patient (case-patient 1) in a study of 4 persons with early cases of influenza A(H7N9) virus infection, Shanghai, China. Images were taken 1, 5, 7, and 11 days after illness onset. A, B) CT scan images on day 1, showing bilateral pleural effusion but no obvious lesions. C) CT scan image on day 5, showing extensive ground-glass opacity and consolidation. D, E) x-ray images on days 7 and 11, respectively, showing reduced light transmittance on both sides of the lung.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3713996&req=5

Figure 1: Chest computed tomography (CT) scan and radiograph images of patient (case-patient 1) in a study of 4 persons with early cases of influenza A(H7N9) virus infection, Shanghai, China. Images were taken 1, 5, 7, and 11 days after illness onset. A, B) CT scan images on day 1, showing bilateral pleural effusion but no obvious lesions. C) CT scan image on day 5, showing extensive ground-glass opacity and consolidation. D, E) x-ray images on days 7 and 11, respectively, showing reduced light transmittance on both sides of the lung.
Mentions: Total leukocyte counts for case-patients 1–4 were within or slightly below reference values: 5.50, 5.95, 3.50, and 4.60 × 109/L, respectively (reference value 4.00–10.00 × 109/L). The proportions of neutrophils were normal or slightly high: 79.6%, 62.6%, 72.4%, and 68.0%, respectively (reference value 50.0%–70.0%). Laboratory test results at admission are shown in Table 2. Radiograph findings mainly included ground-glass opacity and consolidation (Figures 1, 2; Technical Appendix Figures 1, 2). Computed tomography (CT) scans and radiograph findings, along with clinical manifestations and laboratory test results, helped establish early diagnoses.

Bottom Line: A novel strain of influenza A(H7N9) virus has emerged in China and is causing mild to severe clinical symptoms in infected humans.Some case-patients have died.To further knowledge of this virus, we report the characteristics and clinical histories of 4 early case-patients.

View Article: PubMed Central - PubMed

Affiliation: Shanghai Public Health Clinical Center, Shanghai, China. tubercle@shaphc.org

ABSTRACT
A novel strain of influenza A(H7N9) virus has emerged in China and is causing mild to severe clinical symptoms in infected humans. Some case-patients have died. To further knowledge of this virus, we report the characteristics and clinical histories of 4 early case-patients.

Show MeSH
Related in: MedlinePlus