With the TRID2 schedule, www.selleckchem.com/products/Gefitinib.html it was proposed that the two 0.1 mL ID doses given at clinic visits 1 and 2 would provide adequate and more rapid immunity than the standard ID schedule, and allow time for seroconversion to be confirmed prior to departure. Blood samples were collected at a time between day 21 and 28 (clinic visit 3) to measure rabies antibody levels and determine immune status. Travelers were considered immune if rabies antibody levels were at least 0.5 IU/mL.1 Another 0.1 mL ID dose (Dose 5) was given at clinic
visit 3 because there is currently insufficient evidence to show that the ID doses given on clinic visits 1 and 2 of the TRID2 schedule are sufficient to induce an adequate immune response. Travelers who did not develop an adequate antibody response on serology performed at clinic visit 3 were informed of their result, and advised that they should consider themselves nonimmune to rabies. They were asked to return to the clinic for an extra vaccine dose (Dose 6) if they had
not already departed on their travel, and repeat serology was performed on the same day to assess antibody response to “Dose 5.” If the second serology test showed adequate rabies antibodies, the need for further serology after “Dose 6” was avoided. Rabies serology was performed at Sullivan and Nicolaides Pathology laboratories (Brisbane, Australia) using the PLATELIA™ RABIES II ELISA method. The maximum rabies antibody level measured was 4 IU/mL, and levels higher than this Palbociclib manufacturer were reported as >4 IU/mL. Results were generally available within 1 week, and all travelers were contacted to advise
them of their immune status. Although the WHO recommends the use of rapid fluorescent focus inhibition test (RFFIT) or the fluorescent antibody Oxymatrine virus neutralization (FAVN) test,1 these are not readily available in Australia. Serology results using the ELISA method are comparable to the RFFIT method, and the ELISA is considered to be a reliable alternative when the RFFIT is unavailable.12,13 All data analyses were performed using STATA 11.1 (Statacorp, College Station, Texas, USA). The outcome measures used were seroconversion rates and antibody levels. Differences in outcomes were analyzed for each of the independent variables: age, gender, type of vaccine schedule, timing of vaccine doses, and the timing of rabies serology. Chi-square tests were used to assess the effect of each independent variable on the outcome measures. p Values of <0.05 were considered statistically significant, and 95% confidence intervals (CI) were calculated for seroconversion rates. As the laboratory did not quantify antibody levels above 4 IU/mL, and it was not possible to calculate the mean or standard deviation for antibody levels. For the purposes of statistical analysis, rabies antibody levels were interpreted as categorical variables as follows: <0.5 IU/mL; 0.5 to 1.49 IU/mL; 1.5 to 2.49 IU/mL; 2.5 to 4 IU/mL; and >4 IU/mL.
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