Abstract
Serological surveillance conducted in areas of an outbreak of influenza A(H7N9) infection in China found no seropositivity for antibodies specific for avian-origin influenza A(H7N9) among 1129 individuals of the general population, whereas >6% of 396 poultry workers were positive (on the basis of a hemagglutination inhibition titer of ≥ 80) for this subtype, confirming that infected poultry is the principal source of human infections and that subclinical infections are possible. Fourteen days after symptom onset, elevated levels of antibodies to A(H7N9) were found in 65.8% of patients (25/38) who survived but in only 28.6% of those (2/7) who died, suggesting that the presence of antibodies may improve clinical outcome in infected patients.
Original language | English |
---|---|
Pages (from-to) | 265-269 |
Number of pages | 5 |
Journal | Journal of Infectious Diseases |
Volume | 209 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jan 15 2014 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Immunology and Allergy
- Infectious Diseases
Keywords
- Antibodies
- H1N1
- H7N9
- Influenza
- Poultry workers
- Serological surveillance