Wong JY, Wu P, Goldstein E, Lau EH, et al.. Analysis of potential changes in seriousness of influenza A and B viruses in Hong Kong from 2001 to 2011. Epidemiol Infect 2015;143:766-71.
SUMMARY Continued monitoring of the seriousness of influenza viruses is a public health priority. We applied time-series regression models to data on cardio-respiratory mortality rates in Hong Kong from 2001 to 2011. We used surveillance data on outpatient consultations for influenza-like illness, and laboratory detections of influenza types/subtypes to construct proxy measures of influenza activity. In the model we allowed the regression coefficients for influenza to drift over time, and adjusted for temperature and humidity. The regression coefficient for influenza A(H3N2) increased significantly in 2005. The regression coefficients for influenza A(H1N1) and B were relatively stable over the period. Our model suggested an increase in seriousness of A(H3N2) in 2005, the year after the appearance of the A/Fujian/411/2002(H3N2)-like virus when the drifted A/California/7/2004(H3N2)-like virus appeared. Ongoing monitoring of mortality and influenza activity could permit identification of future changes in seriousness of influenza virus infections.
See Also:
Latest articles in those days:
- Highly pathogenic avian influenza A(H5N1) virus in a common bottlenose dolphin (Tursiops truncatus) in Florida 9 hours ago
- Evidence of Reverse Zoonotic Transmission of Human Seasonal Influenza A Virus (H1N1, H3N2) Among Cats 9 hours ago
- Evolution and Antigenic Differentiation of Avian Influenza A(H7N9) Virus, China 9 hours ago
- Evolution of H7N9 highly pathogenic avian influenza virus in the context of vaccination 1 days ago
- Cost-effectiveness of high-dose influenza vaccination in the Netherlands: Incorporating the impact on both respiratory and cardiovascular hospitalizations 1 days ago
[Go Top] [Close Window]