The strength of our study is the long-term follow-up, verification of CMV diagnosis by using frequent consecutive surveillance TBBs (including IHC for CMV), and the uniform evaluation and treatment process achieved because Sahlgrenska is a single centre.
A large cross sectional study was conducted based on the information collected during five consecutive surveillance periods (2002-2007) by the sentinel network of general practitioners (GPs) commissioned by the Scientific Institute of Public Health (SIPH), Brussels in Belgium http://www.iph.fgov.be/epidemio/epien/index10.htm.fgov.be/epidemio/epien/index10.htm
To describe the spread and impact of the SBV epidemic in France in 2012 2013, we analysed the data collected from January 2012 to August 2013 through the two consecutive SBV surveillance and investigation systems.
Among them: computers that correct a user's mistakes or fix themselves when they malfunction; new stimulants to keep soldiers awake and alert for seven consecutive days; tiny surveillance cameras that fly like a bird and tell a soldier what looms over the horizon or around a street corner; bombs that can hit moving objects by constantly updating the coordinates of the target.
The PN SS was 39% although hospitals with six consecutive month's surveillance participation and high NI incidence were chosen.
First, the RX t-n):Y values of the RX t-nsion analYsis were low based on a consecutivaluesear surveillance (n = 48; RX(t-n):Y = 0.059-0.31) and the respective slofes varied greathe, i.e., changes in the regression(domestic canalysisre dependent on changes in X (dengue importations) were a 95% CI that ranged from −0.57 to 9.93.
Additionally, the fluctuating patterns in the cumulative numbers of the imported dengue cases (X) with a 1 2 month lead time (t) was in parallel with that of the domestic dengue cases (Y) based on a consecutive 4-year surveillance (i.e., n = 48, RX t-1):Y = 0.22, RX t-1):Y = 0.22, P < 0.001) fRX t-207–2010.
Third, the monthly fluctuation patterns in the number of cumulative imported dengue cases (X) with a 1 3 month lead time (t: month) were associated with those of the domestic dengue cases (Y), based on a consecutive 4-year surveillance according to the Pearson's rank test (n = 48, RX t-0):Y = 0.24, RX t-0):Y = 0.24, RX t-1):Y = 0.56, RX t-1):Y = 0.47 and RX t-2):Y = 0.22).
We compared the number of viral respiratory cultures sent to the Hawaii Department of Health and the number of providers who participated in influenza surveillance over consecutive influenza seasons.
A consecutive four-year poultry surveillance in South China showed that virus isolation rate started to rise when the ambient temperature was below 20°C[ 4], and peaked when the temperature went below 10°C.
The main limitation of our study is the lack of surveillance in consecutive years, which could have biased results in case of an outbreak of one specific virus in a given year.
