Bid rent theory in the central business district (CBD) [edit]. Land users, whether they be retail, office, or residential, all compete for the most accessible land within the CBD. The amount they are willing to pay is called bid rent.
Recombinant or purified protein vaccines consist of protein antigens that have either been produced in a heterologous expression system (e.g., bacteria or yeast) or purified from large amounts of the pathogenic organism.
FLUVIRINÂ® (Influenza Virus Vaccine) is an inactivated subunit influenza virus vaccine indicated for active immunization of persons aged 4 years and older against influenza disease caused by influenza virus subtypes A and B included in the vaccine.1.