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Influenza H3N2
Subclade K (J.2.4.1):
32-fold Immune Escape.
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H3N2 亞型 K (J.2.4.1) 的出現，代表流感疫情形勢的關鍵轉折。隨著疫苗反應性大幅下降 32 倍，以及 T135K 等關鍵突變的產生，對精準工具的需求變得前所未有的迫切。請確保您的研究保持在最前沿——與（Sino Biological）合作，加速下一代診斷工具與治療藥物的研發。
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Sino Biological’s Specialized Influenza Toolbox
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Accelerated Launch HA, NA, and NP proteins for the latest WHO-recommended vaccine strains and strains currently causing outbreak.
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Advanced Discovery HA B cell probe proteins for screening next-gen broad-spectrum antibodies.
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Unmatched Purity High-quality reagents to ensure the accuracy of your HI/VN assays.
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Explore More about Influenza Reagents 
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Featured Influenza A H3N2 Antigens
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Influenza A H3N2 (A/Singapore/GP20238/2024) HA Trimer Protein | Cat#: 41102-V08H
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MALS-Validated Purity & Structure
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High Purity: >95% purity confirmed by SDS-PAGE & SEC-MALS.
Native State: MALS-verified HA trimer with a molecular weight of 238.3 kDa.
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Superior Bioactivity
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High Sensitivity: Robust binding to Anti-HA (CR9114) with an EC50 of 0.4-1.2 ng/mL.
QC Tested: Guaranteed performance for your neutralizing assays
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Influenza A H3N2 (A/Singapore/GP20238/2024) NA Protein | Cat#: 41103-V08B
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Purity ≥ 90% as determined by SDS-PAGE.
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Influenza A H3N2 (A/Singapore/GP20238/2024) NP Protein | Cat#: 41104-V08B
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Purity ≥ 90% as determined by SDS-PAGE.
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Find out More Featured Antigens for Influenza Vaccines
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More Influenza Antigens
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Molecule
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Cat#
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Species
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Strain
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Clade
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Features
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HA
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41128-V08H
(pre-order)
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H3N2
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A/New York/GKISBBBG87773/2025
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K (J.2.4.1)
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–
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HA
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41100-V08H
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H3N2
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A/Sydney/1359/2024
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K (J.2.4.1)
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–
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HA
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41102-V08H
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H3N2
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A/Singapore/GP20238/2024
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J.2.4
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Active
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HA
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41105-V08H
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H1N1
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A/Missouri/11/2025
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D.3.1
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–
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HA
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40016-V08H2
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Influenza B
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B/Brisbane/60/2008
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Clade 1A
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Active
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HA-specific B cell probe
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41050-V49H1-B
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H1N1
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A/Victoria/2570/2019
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6B.1A.5a.2
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Active
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HA-specific B cell probe
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41051-V49H-B
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H3N2
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A/Darwin/6/2021
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3C.2a1b.2a.2
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Active
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HA-specific B cell probe
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41049-V49H1-B
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H1N1
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A/Victoria/4897/2022
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5a.2a.1 (D)
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Active
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HA-specific B cell probe
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40862-V27H2-B
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Influenza B
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B/Austria/1359417/2021
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V1A.3a.2
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Active
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HA-specific B cell probe
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11684-V49H3-B
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H1N1
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A/Puerto Rico/8/1934
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–
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Active
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NA
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41129-V08B
(pre-order)
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H3N2
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A/New York/GKISBBBG87773/2025
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K (J.2.4.1)
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–
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NA
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41106-V08B
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H1N1
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A/Missouri/11/2025
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D.3.1
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≥ 90%
(SDS-PAGE)
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NP
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41130-V08B
(pre-order)
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H3N2
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A/New York/GKISBBBG87773/2025
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K (J.2.4.1)
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–
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NP
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41101-V08B
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H3N2
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A/Sydney/1359/2024
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K (J.2.4.1)
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≥ 90%
(SDS-PAGE)
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NP
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41107-V08B
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H1N1
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A/Missouri/11/2025
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D.3.1
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≥ 90%
(SDS-PAGE)
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More Influenza Antigens for Vaccine and Diagnostics Development
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Don’t Miss Out!
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