Transfer of naturally acquired specific passive immunity against Anaplasma phagocytophilum in foals in Southeastern Pennsylvania and Northern Maryland.

ABSTRACT:

Background

Equine granulocytic anaplasmosis (EGA) is a common disease in adult horses, but clinical disease in foals is rarely reported. The relationship between equine maternal and neonatal antibodies to Anaplasma phagocytophilum is unclear.

Hypothesis/objectives

That mares in an endemic region would be seropositive for A. phagocytophilum and that mare and foal serum IgG concentrations for A. phagocytophilum would correlate. Additionally, we hypothesized that foal IgG concentrations for A. phagocytophilum acquired by passive immunity would decline by 6 months of age.

Animals

Twenty-two healthy mare-foal pairs.

Methods

This prospective observational study investigated serum IgG concentrations specific for A. phagocytophilum in mares and foals using an immunoflu

SUBMITTER: Rule EK 

PROVIDER: S-EPMC10472987 | biostudies-literature | 2023 Sep-Oct

REPOSITORIES: biostudies-literature