influenza B

in·flu·en·za B

influenza caused by strains of influenza virus type B; outbreaks are usually more limited than those due to influenza virus type A, although infections by the two types are clinically indistinguishable; occasionally associated with Reye syndrome.

influenza B

Infectious disease An influenza virus which causes epidemics in 3-5 yr cycles. Cf Influenza A, Influenza C.

in·flu·en·za B

(inflū-enză)
Influenza caused by strains of influenza virus type B; outbreaks are usually more limited than those due to influenza virus type A, although infections by the two types are clinically indistinguishable.
References in periodicals archive ?
In addition to influenza A(H3N2) viruses, influenza A(H1N1)pdm09 and influenza B viruses were detected during May-September worldwide and in the United States.
The median age of influenza cases in South Africa was lower for those with H1N1 (2009) and influenza B infections than for those with influenza A(H3N2).
Influenza A (H1N1) and (H3N2) and Influenza B have circulated globally in humans since 1977.
Influenza A (H1N1)pdm09, influenza A (H3N2), and influenza B viruses were detected during May-September in the United States and worldwide.
In East Asia, overall pandemic influenza activity remained low as circulation of seasonal influenza B viruses continued to increase across the region.
Influenza A (H1N1)pdm09 (pH1N1), influenza A (H3N2), and influenza B viruses were detected worldwide and were identified sporadically in the United States.
Of these, 12,175 (89.3%) were influenza A viruses, and 1,466 (10.7%) were influenza B viruses.
This accessibility restricts the potential targets to conserved structures of the ectodomains of viral transmembrane proteins HA, NA, and M2, in the case of influenza A viruses, and HA, NA, NB, and BM2, in the case of influenza B viruses.
Influenza A (H1N1) pdm09 (pH1N1), influenza A (H3N2), and influenza B viruses were detected worldwide and were identified sporadically in the United States.
Influenza A (H1N1)pdm09 (pH1N1) viruses predominated overall, but influenza B viruses and, to a lesser extent, influenza A (H3N2) viruses also were reported in the United States.
Specification of receptor-binding phenotypes of influenza virus isolates from different hosts using synthetic sialylglycopolymers: non-egg-adapted human H1 and H3 influenza A and influenza B viruses share a common high binding affinity for 6'-sialyl(N-acetyllactosamine).
Of these, 35,365 (97%) were influenza A viruses, and 1,254 (3.4%) were influenza B viruses.