Parainfluenza Virus Type 2,3 (HRP)

May be stored at 4 °C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and add glycerol (40-50%). Freeze at -20 °C. Aliquots are stable for at least 6 months at -20 °C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Crossreacts with type 2. Minimal reactivity with type 1. Some crossreactivity with bovine para-3(<1:400) and canine para (<1000). Does not react with HEp-2 cells by indirect immunofluorescence.