Acute Sin Nombre Hantavirus Infection without Pulmonary Syndrome, United States
1999

Mild Cases of Hantavirus Infection

Sample size: 5 publication Evidence: low

Author Information

Author(s): Paul T. Kitsutani, Robert W. Denton, Curtis L. Fritz, Robert A. Murray, Randall L. Todd, W. John Pape, J. Wyatt Frampton, Joni C. Young, Ali S. Khan, Clarence J. Peters, Thomas G. Ksiazek

Primary Institution: Centers for Disease Control and Prevention

Hypothesis

Can hantavirus infections occur without severe pulmonary symptoms?

Conclusion

The study reports five cases of acute hantavirus infection that did not meet the criteria for hantavirus pulmonary syndrome, suggesting the need for expanded surveillance.

Supporting Evidence

  • Five cases of acute hantavirus infection were identified without severe pulmonary involvement.
  • Patients exhibited characteristic prodromal symptoms of high fever, headache, and myalgia.
  • All patients had positive SNV IgM and IgG antibodies.
  • Some typical features of HPS were observed, but without severe respiratory distress.

Takeaway

Some people can get sick from hantavirus without having serious breathing problems, which is different from what we usually see.

Methodology

The study identified atypical cases through the National HPS Surveillance System and confirmed infections via serologic testing.

Limitations

The study only reports a small number of cases and lacks extensive demographic data.

Participant Demographics

The cases included individuals from various states, with ages ranging from 4 to 38 years.

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