homologous serotype

ho·mol·o·gous se·ro·type

an antibody that was induced by a particular antigen and reacts with that antigen.
References in periodicals archive ?
Infection by a given serotype induces a lifelong protective immunity against the homologous serotype, but only a transient and partial protection against the three other serotypes (9).
Infection with a single serotype leads to long-term protective immunity against the homologous serotype but not against other serotypes (1).
Invasive diseases may originate from nasopharyngeal colonization with the homologous serotype (21).