Serum from a plain red top is the only acceptable sample type.
Gel barrier tubes are not acceptable.
Allow blood to clot at room temp or 37°C for 20 to 60 minutes. Centrifuge to thoroughly remove cells and immediately transfer cell-free serum to a fresh tube and freeze the cell-free serum on dry ice or at -70°C.
Preferred volume: 1 mL
Minimum volume: 250 µL serum, frozen
Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Frozen at -70°C: 1 year
Please specify if sample is a PRE, POST, or RANDOM.
4th Fri of the month
up to 4 weeks
ELISA (Haemophilus influenzae b IgG Ab)
0-6 months 0.05-2.42
6 months-1 year 0.05-0.35
1-2 years 0.05-0.42
2-3 years 0.05-1.46
3-5 years 0.05-2.73
5-8 years 0.05-7.00
8-11 years 0.05-4.27
11-15 years 0.06-11.6
15-16 years 0.08-6.78
>16 years 0.09-17.7