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In immunology, seroconversion is the time period during which a specific antibody develops and becomes detectable in the blood. After seroconversion has occurred, the disease can be detected in blood tests for the antibody. During an infection or immunization, antigens enter the blood, and the immune system begins to produce antibodies in response. Before seroconversion, the antigen itself may or may not be detectable, but the antibody is, by definition, absent. During seroconversion, the antibody is present but not yet detectable.
A compound adjuvant, its preparation method, and its application in vaccine preparation.
PendingCN122297661AMycoplasma synoviaeAcute toxicity testing
This invention provides a composite adjuvant, its preparation method, and its application in vaccine preparation, belonging to the field of vaccine adjuvant technology. The composite adjuvant of this invention has low viscosity, only 12 mPa·s at 20°C, ensuring smooth injection; it exhibits high biocompatibility, with no deaths or organ abnormalities in acute toxicity experiments in mice, and no local or systemic adverse reactions or stress responses in chickens after injection; it also demonstrates excellent immunogenicity, achieving a 90% seroconversion rate for Mycoplasma cambogia and an 80% seroconversion rate for Mycoplasma synoviae 28 days after immunization with an inactivated Mycoplasma synoviae vaccine.
Owner:GUANGZHOU PINRAN BIOTECHNOLOGY CO LTD