domingo, 3 de mayo de 2015

H5 Viruses in the United States | Avian Influenza (Flu)

H5 Viruses in the United States | Avian Influenza (Flu)

CDC. Centers for Disease Control and Prevention. CDC 24/7: Saving Lives. Protecting People.

H5 Viruses in the United States

Highly pathogenic avian influenza (HPAI) H5 infections have been reported in U.S. domestic poultry (backyard and commercial flocks), captive wild birds, and wild birds. HPAI H5 detections began in December 2014 and have continued into April 2015. USDA is reporting that H5 viruses have been detected in birds in 18 U.S. states; 13 states have experienced outbreaks in poultry flocks and 5 states have detected H5 in wild birds.
No human infections with these viruses have been detected at this time, however similar viruses have infected people in other countries and caused serious illness and death in some cases. Human infections with other avian influenza viruses have occurred after close and prolonged contact with infected birds or the excretions/secretions of infected birds (e.g., droppings, oral fluids).
While the health risk posed to the general public by these domestic HPAI outbreaks is low at this time, it is possible that human infections with these viruses may occur. CDC has guidance for clinicians and public health professionals in the United States on appropriate follow-up, preventive treatment, testing, specimen collection and processing of samples from patients who may be infected with H5 viruses and has been in close contact with state health departments from all 16 states that have detected H5 in birds.

CDC Recommendations for the Public

  • As a general precaution, people should avoid wild birds and observe them only from a distance; avoid contact with domestic birds (poultry) that appear ill or have died; and avoid contact with surfaces that appear to be contaminated with feces from wild or domestic birds.
  • People who have had contact with infected bird(s) should monitor their own health for possible symptoms (for example, conjunctivitis, or flu-like symptoms).
  • People who have had contact with infected birds may also be given influenza antiviral drugs preventatively.
  • Health care providers evaluating patients with possible HPAI H5 infection should notify their local or state health departments which in turn should notify CDC. CDC is providing case-by-case guidance at this time.
  • There is no evidence that any human cases of avian influenza have ever been acquired by eating properly cooked poultry products.
  • CDC will update the public as new information becomes available.
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Risk to Human Health
  • No human infections with U.S. H5 viruses have occurred
  • Similar viruses have infected humans in other countries
  • People in contact with known infected or possibly infected birds should take precautions to protect against infection

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