PARAV - Clinical: Parainfluenza Virus (Types 1, 2, 3) Antibodies, Serum

Test Catalog

Test Name

Test ID: PARAV    
Parainfluenza Virus (Types 1, 2, 3) Antibodies, Serum

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.




< 1:8 Antibody Not Detected

> or =1:8 Antibody Detected


Single titers > or = 1:64 are indicative of recent infection. Titers of 1:8 to 1:32 may be indicative of either past or recent infection, since CF antibody levels persist for only a few months.  A four-fold or greater increase in titer between acute and convalescent specimens confirms the diagnosis. After initial infection, antibody responses at a later date are often heterotypic and exhibit crossreactivity with other paramyxoviruses (e.g., mumps).