When someone is said to have an “antibody positive” result, it means that their body has been exposed to and has developed antibodies to a particular antigen. This can occur when a person has encountered a particular virus, bacteria, or other pathogen, or when they have received a vaccination.
Antibodies are a type of protein, created by the body’s immune system, that are designed to recognize and bind to specific antigens. Antigens can be anything that the body recognizes as foreign, including viruses, bacteria, and toxins. When an antigen enters the body, the immune system produces antibodies to bind to it and help eliminate it from the body.
If antibodies are present in a person’s body, it indicates that they have been exposed to a particular antigen in the past. If someone tests antibody positive for a particular virus, it means that their body has created antibodies to fight it off, indicating that they have likely been infected with it at some point in the past.
An antibody positive result does not necessarily mean that a person is currently infected or contagious, as it only indicates that the person has been exposed to the virus at some point in the past. However, it can be used to help diagnose certain illnesses, as well as to determine if someone has immunity to a particular virus or bacteria.