Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves. Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
If heterophil antibodies are present, the blood clumps (agglutinates). This result usually indicates a mono infection. Monospot testing can usually detect antibodies 2 to 9 weeks after a person is infected. It typically is not used to diagnose mono that started more than 6 months earlier. EBV antibody test. For this test, a sample of blood is mixed with a substance that attaches to antibodies against EBV.
Classic mono usually begins with 2 to 5 days of feeling tired and under the weather, sometimes with a fever. This may even last a week or two. Then a sore throat develops with swollen glands in the neck and elsewhere. Fever and tiredness increase. Rashes and abdominal pain are common, especially in children.