Highly Pathogenic Avian Influenza A(H5N1) Virus Infections in Humans

被引：0

作者：

Garg, Shikha ^{[1
]}

Reinhart, Katie ^{[1
]}

Couture, Alexia ^{[1
]}

Kniss, Krista ^{[1
]}

Davis, C. Todd ^{[1
]}

Kirby, Marie K. ^{[1
]}

Murray, Erin L. ^{[2
]}

Zhu, Sophie ^{[2
,3
]}

Kraushaar, Vit ^{[2
]}

Wadford, Debra A. ^{[2
]}

Drehoff, Cara ^{[3
,4
]}

Kohnen, Allison ^{[4
]}

Owen, Mackenzie ^{[4
]}

Morse, Jennifer ^{[5
]}

Eckel, Seth ^{[6
]}

Goswitz, Jessica ^{[7
]}

Turabelidze, George ^{[7
]}

Krager, Steve ^{[8
]}

Unutzer, Anna ^{[9
]}

Gonzales, Emilio R. ^{[10
]}

Abdul Hamid, Cherissa ^{[10
]}

Ellington, Sascha ^{[1
]}

Mellis, Alexandra M. ^{[1
]}

Budd, Alicia ^{[1
]}

Barnes, John R. ^{[1
]}

Biggerstaff, Matthew ^{[1
]}

Jhung, Michael A. ^{[1
]}

Richmond-Crum, Malia ^{[1
]}

Burns, Erin ^{[1
]}

Shimabukuro, Tom T. ^{[1
]}

Uyeki, Timothy M. ^{[1
]}

Dugan, Vivien G. ^{[1
]}

Reed, Carrie ^{[1
]}

Olsen, Sonja J. ^{[1
]}

机构：

[1] Ctr Dis Control & Prevent, Influenza Div, Atlanta, GA 30341 USA

[2] Calif Dept Publ Hlth, Richmond, CA USA

[3] Ctr Dis Control & Prevent, Epidem Intelligence Serv, Atlanta, GA USA

[4] Colorado Dept Publ Hlth & Environm, Denver, CO USA

[5] Mid Michigan Dist Hlth Dept, Stanton, MI USA

[6] Michigan Dept Hlth & Human Serv, Lansing, MI USA

[7] Missouri Dept Hlth & Senior Serv, Jefferson, AR USA

[8] Benton Franklin Hlth Dist, Kennewick, WA USA

[9] Washington State Dept ment Hlth, Tumwater, WA USA

[10] Texas Dept State Hlth Serv, Austin, TX USA

来源：

NEW ENGLAND JOURNAL OF MEDICINE | 2025年 / 392卷 / 09期

关键词：

COLORADO;

D O I：

暂无

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

BACKGROUND Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United States, with sporadic human cases. We describe characteristics of human A(H5N1) cases identified from March through October 2024 in the United States. METHODS We analyzed data from persons with laboratory-confirmed A(H5N1) virus infection using a standardized case-report form linked to laboratory results from the Centers for Disease Control and Prevention influenza A/H5 subtyping kit. RESULTS Of 46 case patients, 20 were exposed to infected poultry, 25 were exposed to infected or presumably infected dairy cows, and 1 had no identified exposure; that patient was hospitalized with nonrespiratory symptoms, and A(H5N1) virus infection was detected through routine surveillance. Among the 45 case patients with animal exposures, the median age was 34 years, and all had mild A(H5N1) illness; none were hospitalized, and none died. A total of 42 patients (93%) had conjunctivitis, 22 (49%) had fever, and 16 (36%) had respiratory symptoms; 15 (33%) had conjunctivitis only. The median duration of illness among 16 patients with available data was 4 days (range, 1 to 8). Most patients (87%) received oseltamivir; oseltamivir was started a median of 2 days after symptom onset. No additional cases were identified among the 97 household contacts of case patients with animal exposures. The types of personal protective equipment (PPE) that were most commonly used by workers exposed to infected animals were gloves (71%), eye protection (60%), and face masks (47%). CONCLUSIONS In the cases identified to date, A(H5N1) viruses generally caused mild illness, mostly conjunctivitis, of short duration, predominantly in U.S. adults exposed to infected animals; most patients received prompt antiviral treatment. No evidence of human-to-human A(H5N1) transmission was identified. PPE use among occupationally exposed persons was suboptimal, which suggests that additional strategies are needed to reduce exposure risk.

引用

页数：12

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