Influenza B virus (Florida) Antigen

Specification

• Cat#: VAC-0157
• Product Name: Influenza B virus (Florida) Antigen
• Description: Allantoic fluid of 10 days old embryonated eggs, inoculated with influenza B virus, strain B/Florida/07/04. The Influenza B Virus was purified by Ultracentrifugation with 10-40 % sucrose gradient.
• Species: Influenza B virus
• Introduction: Influenza-B virus is a genus in the virusfamily Orthomyxoviridae. The only species in this genus is called \"Influenza B virus\". Influenza B virus only infects humansand seals. This limited host range is apparently in contrast with those caused by the similar Influenza virus A as both mutate by both genetic drift and reassortment. Influenza-B virus evolves slower than A viruses and faster than C viruses. Influenza-B virus mutates at a rate 2-3 times lower than type A. However, influenza B mutates enough that lasting immunity is not possible. The Influenza B virus capsidis enveloped while its virionconsists of a matrix protein + envelope + nucleoprotein complex + nucleocapsid, and a polymerasecomplex. Influenza B is sometimes spherical and sometimes filamentous. Its 500 or so surface projections are made of hemagglutinin and neuraminidase.The Influenza B virus is 14648 nucleotideslong and consists of eight segments of linear negative-sense, single-stranded RNA. The multipartite genome is encapsidated, each segment in a separate nucleocapsid, and the nucleocapsids are surrounded by one envelope.
• Purity: Greater than 90.0% as determined by SDS-PAGE.
• Stability: B/Florida/07/04 although stable 4°C for 4 weeks, should be stored below -18°C. Please prevent freeze-thaw cycles.
• Usage: All the products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.