Other
Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials: > Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: > Other > Containing antigens or antisera: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Products classified under HTS 3822.19.00.30
SARS-CoV-2 Antigen Detection Kit
A diagnostic reagent kit containing SARS-CoV-2 spike protein antigens and monoclonal antibodies for rapid nasal swab testing. It falls under HTS 3822.19.0030 as it contains antigens for laboratory diagnosis of COVID-19 infection. Prepared as a complete test kit on a backing for point-of-care use.
Influenza A/B Antigen Test Strip
Lateral flow test strips containing influenza A and B viral antigens with detection antibodies on nitrocellulose backing. Classified under HTS 3822.19.0030 due to antigen-containing prepared laboratory reagents. Used for rapid respiratory infection diagnosis in clinical labs.
Streptococcus Antigen Latex Kit
Latex agglutination reagent kit containing group A Streptococcus antigens for throat swab diagnosis. Features antibody-coated latex particles reacting with bacterial antigens on test cards. HTS 3822.19.0030 applies to these antigen-based prepared laboratory reagents.
Rotavirus Antigen ELISA Kit
Enzyme-linked immunosorbent assay kit with rotavirus VP6 antigens and detection antibodies for stool sample testing. Prepared on microplate backing for quantitative laboratory diagnosis. Classified under HTS 3822.19.0030 for antigen-containing diagnostic reagents.
HIV p24 Antigen/Antibody Combo Kit
Fourth-generation HIV diagnostic reagent containing recombinant p24 antigens and anti-HIV antibodies on solid phase backing. Detects both antigen and antibodies for early infection diagnosis. HTS 3822.19.0030 covers these dual antigen/antisera laboratory reagents.
Hepatitis B Surface Antigen ELISA
Microplate-based ELISA reagents containing HBsAg and monoclonal detection antibodies for hepatitis B screening. Prepared diagnostic reagents on plastic backing meeting HTS 3822.19.0030 antigen criteria. Used in clinical laboratories for blood donor testing.
Clostridium difficile Toxin A/B Antigen Kit
Lateral flow immunoassay containing C. difficile toxin A and B antigens with detection antibodies on membrane backing. Rapid laboratory diagnosis of antibiotic-associated diarrhea. HTS 3822.19.0030 classification for toxin antigen diagnostic reagents.
Legionella Urinary Antigen Test
Immunochromatographic test strips containing Legionella pneumophila serogroup 1 antigen monoclonal antibodies on backing. Detects soluble antigen in urine for Legionnaires' disease diagnosis. Prepared laboratory reagent under HTS 3822.19.0030.
Adenovirus Antigen Immunoassay Kit
DFA (direct fluorescent antibody) reagents containing adenovirus hexon antigens and type-specific monoclonal antibodies. Applied to specimen slides for respiratory diagnosis. HTS 3822.19.0030 for antigen-based laboratory immunofluorescence reagents.
Cryptosporidium/Giardia Antigen Combo Test
Monoclonal antibody-based lateral flow test detecting Cryptosporidium parvum and Giardia lamblia antigens in stool. Prepared on nitrocellulose membrane backing for parasitology labs. Classified HTS 3822.19.0030 as protozoan antigen diagnostic reagents.
H. pylori Urease Antigen Test
Rapid urease test reagents containing Helicobacter pylori urease antigens with detection antibodies on test strip backing. Used for gastric biopsy diagnosis of peptic ulcer disease. HTS 3822.19.0030 for bacterial antigen laboratory reagents.
RSV Fusion Protein Antigen Test
Monoclonal antibody capture test for Respiratory Syncytial Virus fusion protein antigens on membrane backing. Nasal wash diagnosis for pediatric respiratory infections. Prepared laboratory reagent under HTS 3822.19.0030 antigen classification.
Group B Streptococcus Antigen Test
Latex agglutination kit detecting Group B Strep capsular polysaccharide antigens from vaginal/rectal swabs. Maternal screening for neonatal infection prevention. HTS 3822.19.0030 for bacterial polysaccharide antigen reagents.
Norovirus Antigen Detection Kit
EIA reagents containing norovirus genogroup I/II antigens with detection antibodies on microplate backing. Stool diagnosis of viral gastroenteritis outbreaks. Classified HTS 3822.19.0030 as prepared viral antigen laboratory reagents.
Treponema pallidum Antigen Test
TPPA (Treponema pallidum particle agglutination) reagents containing immobilized T. pallidum antigens on gelatin particles. Confirmatory syphilis serology for clinical laboratories. HTS 3822.19.0030 classification for spirochete antigen diagnostic reagents.