Charles River offers human influenza type A and B viruses, as well as Sendai virus (Cantell strain), supplied as allantoic fluid and sucrose gradient-purified. We also provide virus preparations with customer-supplied Biosafety Level 1 and 2 viruses. Viruses are grown in specific pathogen-free (SPF) embryonated eggs and final preparations can be delivered in crude (bulk fluids), concentrated, fractioned or purified forms.
Chicken serum antibodies to Influenza A/PR/8/34 and Sendai Cantell are also readily available. These are prepared in our SPF chickens raised under strict biosecurity and HEPA-filtered air under positive pressure (FAPP) rooms.
Human Influenza Strains
- Influenza A/PR/8/34 (H1N1)
- Influenza A X-31, A/Aichi/68 (H3N2)
- Influenza A/Victoria/3/75 (H3N2)
- Influenza A/Hong Kong/8/68 (H3N2)
- Influenza B/Lee/40
- Customer-Supplied Virus
The original virus was obtained from American Type Culture Collection (ATCC), product code VR-907, identified as Parainfluenza 1, Sendai/Cantell strain. It was passaged several times by inoculating the virus into the chorioallantoic sac of 9 to 11 day-old embryonated SPF chicken eggs. Virus is supplied as sterile, clarified allantoic fluid at a minimum titer of 2000 HA units/ml, or purified to 2 mg/ml.