acellular


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Related to acellular: acellular vaccine, acellular cementum

acellular

[′ā·sel·yə·lər]
(biology)
Not composed of cells.
References in periodicals archive ?
There is intriguing preliminary evidence from a study in baboons conducted by scientists at the Food and Drug Administration that suggests acellular vaccine doesn't protect against pertussis infection and transmission, even though symptoms are prevented (Proc Natl Acad Sci USA.
Finally, as the percentage of acellular vaccination increases, the number of asymptomatic cases of B.
Biological evaluation of acellular bovine reticulum matrix
Seven of the LAMN cases showed no neoplastic epithelium at the margin, but had dissecting acellular mucin at the margin (Figure 3).
The use of the whole-cell vaccine after the initial vaccination in the first year of life might be a good idea, but we don't know yet if that would correct the immunological defects of the acellular vaccine.
The acellular pertussis vaccine is more purified and uses only selected portions of the pertussis bacteria to stimulate an immune response.
Researchers evaluated the risk of pertussis during the outbreak according to either the number of whole-cell or acellular pertussis vaccines the youth had received as infants and toddlers.
ACIP recommends a single Tdap dose for persons aged 11 through 18 years who have completed the recommended childhood diphtheria and tetanus toxoids and pertussis/diphtheria and tetanus toxoids and acellular pertussis (DTP/DTaP) vaccination series and for adults aged 19 through 64 years who have not previously received Tdap (1,4).
An acellular pertussis combination vaccine (DTaP-Hib) was used from 1999 to 2002 because of a shortage of the whole cell pertussis combination (DTwP-Hib) vaccine.
Is an acellular pertussis vaccine safe and effective for adults and adolescents?
The move follows a recommendation from the independent Joint Committee on Vaccination and Immunisation (JCVI) that a combined diphtheria, tetanus and acellular pertussis vaccine (DTaP) be given at around four years of age.