He has shown in animal tests that treatments targeting those drugs can also produce high levels of antibodies against the addictive compounds. (discovermagazine.com)
So when these in - clinic tests are performed properly, it means that a positive test result demonstrates the dog or cat does have protective levels of antibody against the virus. (dogsnaturallymagazine.com)
Studies have shown that people who have sex one or two times a week have a higher level of an antibody in their blood that actually prevents sickness. (welovedates.com)