titre

Preposition: of

• antibody: What is the complement fixation titre of antibody in the serum?
• virus: What are the approximate titres of viruses A and B?
• agent: Iatrogenic transmission of CJD accepted - high titres of the agent in experimentally infected guinea pig corneas.
• infectivity: The CNS tissues of sheep clinically affected with scrapie had been demonstrated to have higher titres of infectivity than those of asymptomatic infected sheep.

Converse of object

• rise: The organism was not isolated in the latter but both had high and rising titres of antibody.
• have: Some tissues may have higher titres earlier than brain tissue eg gut, hence these are best avoided from British sources.
• reduce: Only the undiluted solution reduced the virus titre by 4 log 10 EID 50.
• determine: The dilution caused by the addition of the cell suspension should not be considered in determining the potency titre.

Adjective modifier

• viral: Viral titres of up to 1 x 10 7 colony-forming units per ml can be obtained in this way.
• high: Some tissues may have higher titres earlier than brain tissue eg gut, hence these are best avoided from British sources.
• low: A low titre IgG antibody response has been observed in approximately 24 % of the male patients treated with Replagal.
• positive: One problem with the test is that dogs may have positive antibody titres following natural subclinical infection, or following vaccination.
• rheumatoid: Although initial rheumatoid factor titre is of prognostic significance, serial measurements are not useful in assessing progress.

Modifies a noun

• anti-a: The component should be free from clinically significant irregular blood group antibodies including high titre anti-A and anti-B.
• test: The Fountain Lake at Orange Lake will serve as the man-made lake testing site for the pilot titre tests.

Noun used with modifier

• infectivity: There is an urgent need to determine BSE infectivity titres in a large variety of bovine tissues.
• potency: The potency titre of the third set of tubes should be clearly reduced to indicate inhibition of the antibody by the blood group substance.
• antibody: The main way to measure duration of immunity is by checking the serum antibody titres.
• virus: Only the undiluted solution reduced the virus titre by 4 log 10 EID 50.
• factor: Although initial rheumatoid factor titre is of prognostic significance, serial measurements are not useful in assessing progress.