One of the mysteries of the English language finally explained.
1An amber-colored, protein-rich liquid that separates out when blood coagulates.
- ‘The number of sera from patients whose blood culture grew B. psuedomallei is only 12.’
- ‘Blood was withdrawn from the carotid artery and the sera were separated for each study.’
- ‘Acute and convalescent sera were obtained 4 weeks apart.’
- ‘The sera were stored at - 20°C without any preservative.’
- ‘The percentage antibody prevalence was calculated using the ratio of positive sera to the total sera tested in each age group.’
- ‘I took those sera down to Melbourne with me and tested them to see if any of them had antibody to this newly discovered tick typhus organism.’
- ‘The sera used in this study correspond to bleeds obtained after four boosts with the same antigen.’
- ‘Earlier studies found that pregnant pigs vaccinated against bacterial intimin developed antibodies against it in their sera and colostrum.’
- ‘Controls included omitting the primary antibody, using control rabbit serum as primary antibody, and omitting the secondary antibody.’
- ‘Pooled control sera had been collected from 321 adults positive to a few molds/microbes.’
- ‘Normal human sera were obtained from healthy individuals.’
- ‘The test liquid was said to approximate the surface tension of human serum.’
- ‘So far, Herman has tested his hypoallergenic soybean with human sera and in sensitive animals.’
- ‘The femoral marrow cells were flushed out with fetal bovine serum and smeared on clean slides.’
- ‘Furthermore, antibodies to the region II domain of the protein are commonly detected in sera from individuals in endemic populations.’
- ‘Blood samples were then obtained and sera tested for HIV and hepatitis.’
- ‘The preimmune serum was collected 1 week before the first inoculation.’
- ‘Blood products, sera, sperm, oocytes and embryos are not included.’
- ‘No staining was detected when the preimmune serum was used as a negative control.’
- 1.1 The blood serum of an animal, used especially to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent.
- ‘You could be making a fortune out of the drugs, serums and surgical hardware, and yet you have to stand on the sidelines and watch as US drug companies make a killing.’
- ‘He was given a cocktail of vaccines within 10 minutes including anti-plague and anthrax serums.’
Late 17th century: from Latin, literally ‘whey’.
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