What are the false negatives or false positives of the antigen test?

　　The automatic assembly production line of multi-drug strip test cards is suitable for the automatic assembly and production of various in vitro diagnostic reagents. It adopts European high steel structure; adopts high-performance PLC with touch screen control, which makes the operation easier, and adopts frequency conversion speed regulation, which is more energy-saving; adopts vibration feeding method to significantly improve feeding efficiency; the assembly action is completed and will be inspected, if any Immediately remove missing parts to ensure the quality of finished products; all electrical equipment accessories and pneumatic device accessories of the whole machine are made of well-known foreign brands, with high quality and low failure rate; Bottom card and surface card are automatically conveyed; large board conveying: large board is automatically loaded.

　　What are the false negatives or false positives of the antigen test?

      1.False negative: The collection of specimens is not standardized, and failure to collect specimens results in false negative results.

　　2. False positives: False positives may occur if the interpretation time exceeds the time required by the instructions; autoimmune diseases may cause false positives; abnormal reagents: false positives in the detection of new coronavirus antigens are usually related to reagents, which may be caused by abnormal detection reagents, such as expired reagents Or if it is not used in time after opening, exposed to air pollution, or mixed with different antigen detection products, abnormalities will appear during the test; just injected with the new coronavirus inactivated vaccine: If you have just injected the new coronavirus inactivated vaccine, due to the vaccine The vaccine usually contains antibodies against the new coronavirus. Although the vaccine is not infectious or pathogenic, the detection of the new coronavirus antigen within 48 hours of the vaccine injection may lead to the detection of the new coronavirus by sensitive reagents, and it is easy to appear. False-positive cases of 2019-nCoV antigen detection.