What is cocci in clusters mean?

Coccus refers to the shape of the bacteria, and can contain multiple genera, such as staphylococci or streptococci. Cocci can grow in pairs, chains, or clusters, depending on their orientation and attachment during cell division.

What causes Gram-positive cocci in clusters in blood?

If “gram-positive cocci in clusters” represent MSSA or MRSA, they may be related to intravenous lines, a skin/soft-tissue source, a bone source, or an endovascular source (e.g., endocarditis) [7–10]. The clinical scenario should be of some help in narrowing possibilities on the basis of the site of infection.

What disease is caused by Gram-positive cocci?

Gram-positive cocci cause certain infections, including the following: Pneumococcal infections. Staphylococcal aureus infections. Streptococcal infections.

What antibiotics treat Gram-positive cocci in clusters?

These include the tetracyclines (tetracycline, minocycline and doxycycline), quinolones (including ciprofloxacin, moxifloxacin and gemifloxacin), chloramphenicol, and rifampin. The penicillins and the glycopeptides have the best activity, and ampicillin typically has greater in vitro killing ability than vancomycin.

Is enteroccus faecalis Gram negative or Gram positive?

Enterococcus faecalis is a Gram-positive, commensal bacterium inhabiting the gastrointestinal tracts of humans and other mammals. E. faecalis can cause life-threatening infections in humans, especially in the nosocomial (hospital) environment. E. faecalis is resistant to many commonly used antimicrobial agents.

Is Actinomyces Gram positive?

Actinomyces is a genus of the Actinobacteria class of bacteria. They are all gram-positive. Actinomyces species are facultatively anaerobic (except A. meyeri and A. israelii both obligate anaerobe), and they grow best under anaerobic conditions.

What are examples of Gram negative cocci?

A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Examples of gram-negative diplococci are Neisseria spp., Moraxella catarrhalis, and Acinetobacter spp.

Is Lactobacillus Gram positive or Gram negative?

Lactobacillus is a genus of Gram-positive, facultative anaerobic or microaerophilic, rod-shaped, non-spore-forming bacteria. They are a major part of the lactic acid bacteria group (i.e., they convert sugars to lactic acid).