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Molecular basis of common receptor targeting by Neisseria meningitidis and Haemophilus influenzae and other mucosal pathogens and colonisers - especially pertaining to the carcinoembryonic antigen related cell adhesion molecules ( CEACAMs ) . In February , Celera announced that four Celera antigen targets have been selected for further investigation by Abbott for therapeutic development under the collaboration between Celera and Abbott to discover , develop , and commercialize therapies for the treatment of cancer . A purified HIV antigen mixture is layered onto a sodium dodecyl sulphate ( SDS ) polyacrylamide gel slab and then electrophoresed . Abbott has selected two Celera antigen targets for further investigation and potential therapeutic development . Celera Genomics and Abbott announced that two Celera antigen targets were selected for further investigation by Abbott for therapeutic development . Tests that detect viral RNA can reduce this window period by another several days over antibody and antigen identification , but these assays are not currently suitable for routine laboratory use due to their requirement for sophisticated equipment and technical expertise .