What is BSK medium?

What is BSK medium?

BSK-H medium is a standardized complex medium designed to support the growth of the Lyme disease spirochete, Borrelia burgdorferi. Barbour-Stonner-Kelly (BSK) medium is a modified medium for the culture of Borrelia strains that cause lyme borreliosis. BSK medium is a cheaper alternative for the selective culture of B.

Can a blood culture detect Lyme disease?

Approximately 45% of untreated United States patients with early Lyme disease associated with erythema migrans have a positive blood culture based on microscopic detection of Borrelia burgdorferi in Barbour-Stoenner-Kelly medium after 2 to 12 weeks of incubation.

What is the morphology of Borrelia burgdorferi?

B. burgdorferi is a helical shaped spirochete bacterium. It has an inner and outer membrane as well as a flexible cell wall. Inside the bacteria’s cell membranes is the protoplasm, which, due to the spiral shape of the bacteria, is long and cylindrical.

Can Borrelia burgdorferi be cultured?

burgdorferi in patient samples, (ii) the reference strain of B. burgdorferi will not grow in MPM medium, (iii) BSK-H medium remains the best medium for cultivation of B. burgdorferi, and (iv) blood culture of patients suspected to have Lyme disease is a low-yield test.

What is bannwarth syndrome?

Bannwarth syndrome (BS) is a typical manifestation of early Lyme neuroborreliosis (LNB) in Europe. It is characterized by painful radiculoneuritis and lymphocytic pleocytosis in the cerebrospinal fluid (CSF), often associated with cranial nerve involvement and sometimes with peripheral paresis [ 1–4 ].

Is Borrelia burgdorferi a virus?

Borrelia burgdorferi sensu stricto is a bacterial species of the spirochete class in the genus Borrelia, and is one of the causative agents of Lyme disease in humans.

Does Lyme show up on MRI?

Magnetic resonance imaging (MRI) shows abnormalities in approximately 15-20% of patients in the United States who have neurologic manifestations of Lyme disease.

What is Borrelia burgdorferi made of?

burgdorferi consists of a protoplasmic cylinder covered by two lipid membranes (Barbour & Hayes, 1986). Between the outer and inner membrane is the periplasmic space that comprises the peptidoglycan layer and flagellar filaments (Kudryashev et al., 2009).

What color is Borrelia burgdorferi?

burgdorferi antibody, producing organisms that had stained a glowing green color. The Lyme disease spirochete, B. burgdorferi, is an obligate parasite that cycles between ticks and vertebrate hosts. B.

Is Lyme disease Gram positive or negative?

Borrelia burgdorferi is a spiral-shaped (spirochete) bacterium that is endemic in North America and Europe. It is neither gram negative nor gram positive, and it is most commonly known as the causative agent of Lyme disease.

Can Lyme disease be cultured?

Culture is not a routinely available diagnostic method for the diagnosis of Lyme disease in clinical practice, due to its relatively low sensitivity, long incubation and the requirement of special media and expertise.