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Infliximab
Infliximab (Remicade, cA2) is a chimeric 75% human/25% mouse IgG1 anti-TNF-alpha monoclonal antibody, first FDA-approved August 24, 1998 for Crohn's disease, given 5 mg/kg IV, with biosimilars CT-P13 and SB2.
Inflorescence
Inflorescence: the flower-bearing system of a plant, also called a flower cluster, defined by branching pattern and flower position. Types include raceme, cyme, panicle, spike, and umbel; determinacy is controlled by LEAFY and TERMINAL FLOWER1.
Inflow tail
An inflow tail is a band of low cloud marking warm, moist air drawn into a supercell thunderstorm's updraft, including the tail cloud and the beaver tail.
Influence diagram
An influence diagram, sometimes called a relevance diagram, is a directed graph for representing decision problems under uncertainty, invented by Howard and Matheson in the mid-1970s.
Influence function (statistics)
The influence function, also called the influence curve, is a statistic measuring a single outlier's effect on an estimator's asymptotic version, introduced by Frank Hampel in 1974.
Influence line
An influence line is a structural analysis graph showing how a response at one fixed point changes as a unit load moves across a structure.
Influence maximization
Influence maximization is the algorithmic problem of choosing a small set of seed nodes in a network to maximize expected influence spread under a diffusion model.
Influence of Arabic on other languages
The influence of Arabic on other languages, also called Arabic influence on other languages, is the lexical and structural imprint Arabic left on Persian, Spanish, Maltese, Swahili, and many others.
Influence of mass media
Influence of mass media (media effects): how newspapers, radio, TV, and digital media shape knowledge, attitudes, and behavior. Covers the four-phase history, agenda setting, framing, cultivation, declining effect sizes, and political and health applications.
Influence of Stanley Kubrick
Influence of Stanley Kubrick: the effect of the director's 13 features on later filmmakers (Scorsese, Spielberg, Gilligan), film technology, music use, and Kubrickian canonization.
Influence of the French Revolution
Influence of the French Revolution: the 1789 Revolution's spread of modern ideologies, its international repercussions in Europe, the Americas, and South Asia, the 1794 abolition of slavery and Haitian independence, and its contested historiography.
Influenced (film)
Influenced (2026) is an American satirical comedy directed by Rachel Israel, written by Jill Kargman, Sean Crespo, and Carol Hartsell. Kargman plays Upper East Side momfluencer Dzanielle chasing one million followers; premiered at Miami Jewish Film Festival, limited release May 8, 2026, distinct from Influenced! and Influence.
Influencer
Influencer: a social media content creator with commercial intent who monetizes audience trust. Covers influencer marketing effectiveness, parasocial relationships, virtual influencers, news and health influence, and FTC and EU disclosure rules.
Influencer marketing
Influencer marketing is a digital marketing technique in which companies pay social media influencers to promote products to their followers, a market worth tens of billions of dollars in 2025.
Influencers (film)
Influencers (2025) is Kurtis David Harder's horror-thriller sequel to Influencer (2022), starring Cassandra Naud as killer CW, released on Shudder December 12, 2025; distinct from The Influencer Project (2026).
Influenza
Influenza (flu): contagious respiratory illness caused by influenza A, B, C, and D viruses; A and B cause seasonal epidemics, A causes pandemics via antigenic drift and shift; 1918, 1957, 1968, 2009 pandemics; annually updated vaccines.
Influenza A proapoptotic protein PB1-F2
PB1-F2, influenza A virus proapoptotic virulence protein, 87-90 aa, encoded by +1 ORF of PB1 gene; targets mitochondria via VDAC1/ANT3, drives apoptosis, inflammation, and secondary bacterial pneumonia; absent from 2009 H1N1.
Influenza A virus
Influenza A virus, also called IAV, is a segmented RNA influenza virus causing seasonal epidemics and all flu pandemics (1918 H1N1, 1957, 1968, 2009), with avian and swine reservoirs and subtypes named by HA and NA proteins such as H1N1 and H3N2.
Influenza a virus of swine
Influenza A virus of swine causes swine influenza, a respiratory pig disease with H1N1, H1N2, H3N2 subtypes; pigs act as reassortment mixing vessels, with rare zoonotic human infections and the 2009 H1N1 pandemic exception.
Influenza A virus subtype H1N1
Influenza A subtype H1N1, also called swine flu or A(H1N1)pdm09 for the 2009 pandemic lineage, is an influenza A virus defined by H1 and N1 surface proteins; it caused the 1918 and 2009 pandemics and still circulates seasonally.
Influenza A virus subtype H3N2
Influenza A(H3N2), the Hong Kong flu subtype that emerged in 1968 from an avian-human reassortment, has caused seasonal epidemics with the highest mortality burden and lowest vaccine effectiveness among human influenza viruses.
Influenza A virus subtype H5N1
Influenza A subtype H5N1 (bird flu), goose/Guangdong lineage since 1996; first human outbreak Hong Kong 1997; clade 2.3.4.4b panzootic since 2020; US dairy cattle outbreak since March 2024; no sustained human-to-human transmission.
Influenza A Virus, H9N2 Subtype
Influenza A virus, H9N2 subtype (avian influenza A(H9N2)), a low pathogenicity avian influenza virus with hemagglutinin 9 and neuraminidase 2, endemic in poultry across Asia, the Middle East, and Africa, causing sporadic mild human infections and supplying internal genes to zoonotic reassortants such as H7N9 and H3N8.
Influenza B virus
Influenza B virus, also called flu B, is one of the four influenza types causing seasonal flu epidemics in humans, with two lineages, B/Victoria and B/Yamagata.
Influenza C virus
Influenza C virus (ICV), genus Gammainfluenzavirus, is a mild human respiratory influenza virus with a seven-segment genome and a single HEF surface glycoprotein; discovered 1947, no epidemics, 90% seropositivity by age 7–10.
Influenza D virus
Influenza D virus (IDV, Deltainfluenzavirus) is an Orthomyxoviridae influenza type discovered in 2011 in Oklahoma pigs, with cattle as its reservoir, four lineages, and zoonotic serologic evidence in cattle workers.
Influenza Infection
Influenza infection, or flu, a contagious respiratory disease caused by Orthomyxoviridae influenza A, B, and C viruses; sialic-acid binding, nuclear replication, NS1-mediated immune evasion, and oseltamivir treatment within 48 hours.
Influenza pandemic
Influenza pandemic: global outbreak from a novel influenza A virus (H1N1, H2N2, H3N2) with little population immunity; 1918, 1957, 1968, 2009 pandemics killed from ~100,000 to 50 million.
Influenza trivalent vaccine
Influenza trivalent vaccine, also called TIV or seasonal trivalent flu vaccine, protects against three viruses: one A(H1N1), one A(H3N2), and one B/Victoria lineage strain, updated annually per WHO recommendations; all US flu vaccines have been trivalent since 2024-2025.
Influenza vaccine
Influenza vaccine (flu shot): annually reformulated vaccine against influenza A(H1N1), A(H3N2), and B/Victoria; trivalent in the US for 2026-2027; effectiveness often below 45%; first mRNA flu vaccine mFlusiva approved August 2026.