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Biomedical subjects

A J Beale

Publications and source records attributed to A J Beale.

At least 19 recordsLinked to original sources

Efficacy and safety of oral poliovirus vaccine and inactivated poliovirus vaccine.

Inactivated poliovirus vaccine (IPV) is the vaccine of choice for protection against paralytic poliomyelitis provided that it is used within the context of a program to increase and sustain the level of uptake to as close to 100% as possible. This means targeting the disadvantaged in society as well as those who have their own pediatrician. The reasons are that enhanced-potency killed polio vaccine is safe, whereas oral poliovirus vaccine (OPV) is associated with a low, but definite, risk of paralysis, especially after the first dose. The immunity, as measured by antibody concentrations, is at least as good as and, in some circumstances, such as in the tropics or for booster doses, better than that provided by OPV. IPV reduces the replication of living poliovirus and produces herd immunity, as exemplified by experience in Sweden and Holland. The immunity, whether induced by OPV or IPV, involves memory cells and is long lasting, as seen by the rapid secondary response to a booster dose. IPV also can be mixed with other vaccine components to provide immunity against an increasing range of childhood infections.

Humans

Vaccine development reconsidered.

This paper briefly reviews work on vaccine development since the early 1950s with special emphasis on identification of immunogens and their presentation to the host so as to elicit an immune response. This is illustrated primarily by a discussion of the development of a candidate meningococcal B vaccine based on a capsular carbohydrate outer membrane protein complex. Work on malaria and living Salmonella typhi vaccine is also discussed.

Antigens, Bacterial

Cell substrate for killed poliovaccine production.

The aspects of choice of cell substrate will be considered. The relative merits of primary cells, cell strains and cell lines will be considered from the standpoint of yield, safety and economics. The merits of highly purified antigen will be presented.

Animals

Measles vaccines.

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Age Factors