Bartonella henselae Antibodies, IgG (Cat Scratch Disease), Serum

Bartonella henselae is the causative agent of cat scratch disease in humans and is one of most common infectious diseases in children. Cats act as a natural reservoir of the bacteria and can transmit Bartonella spp to humans by a scratch or bite. The clinical spectrum of Bartonella henselae infection varies, ranging from classic cat scratch disease with only lymphadenopathy to severe systemic disease especially in immuno-compromised individuals. B. henselae can be a cause of fever with bacteraemia or fever of unknown origin.

The presence of B. henselae specific IgG antibodies in the absence of B. henselae specific IgM antibodies indicates past infection and immunity. However, a rising IgG titre indicates current or acute infection.

2 ml Serum Room Temperature

Male: < 1/64 Titre Female: 1/64 - 1/128 Titre Acute or past infection: > 1/256 Titre