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Gram staining, also called Gram's method, is a method of differentiating bacterial species into two large groups (Gram-positive and Gram-negative).
Streptococcus pneumoniae is responsible for causing severe acute bacterial infections like pneumonia, sepsis, and meningitis. Distinguishing it from other alpha-hemolytic streptococci is achievable by assessing its susceptibility to optochin, as indicated in the accompanying image. Notably, the pneumococcal polysaccharide capsule plays a crucial role in evading phagocytosis, contributing to its pathogenicity.
Growth of Staphylococcus. Sputum Culture in blood agar media.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Hand of doctor or researcher holding a plate of microbiological cultures with colored bacteria. Concept of antibiotic resistance
Atomic color code: H light blue, C blue, O red, N dark blue, Cl & F green, S yellow.
Different types in cell development glass dishes on desk. Group of Petri dishes with different culture media and micro organisms grown.
Photomicrograph: Fungal colony, skin scraping for fungus test
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
Bacteria classification based on shape. 3D illustration.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Group of petri dishes with different culture media and micro organisms grown. They show biodiversity in microbiology. Isolated on white background.
A Petri dish with Agar-Blood medium with a culture of the bacteria Methicillin-resistant Staphylococcus aureus (MRSA)
Microscopic view of Enterococcus bacteria from UTI patient urine sample, show gram-positive cocci at gram's staining slide. focus view
In vitro bacterial culture
Salmonella was growth in (selective medium) XLD agar
The black colinies are Salmonella bacteria.
Growth of E coli. Urethral smear culture in macconkey  agar media.
View of e.coli bacterium growing in petri dish seen through magnifying glass
A fixed preparation of yeast and hyphae stained with gentian violet that buds under a microscope with immersion
A hand holding a culture of Staphylococcus aureus on a jelly agar.
Yeast Infection; Budding yeast and pseudohyphae of Candida albicans, gram's stain. This fungus commonly affects vagina and vulva, oral (thrush) and diaper rash.
Petri dishes with bacteria culture samples in microbiology laboratory
Backgrounds of Characteristics  of Bacteria and Fungi  for education in Microbiology laboratory.
Pink fuzzy colonies af Candida krusei grown on chrom agar. Chron agar is suited for isolation and differentiation of major clinical-significant Candida species
Petri dish filled with bacterial growth media are used to culture bacteria in the laboratory
In vitro bacterial culture
Gram positive cocci finding with microscope in lab.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Free Images: "bestof:Strep Classification.svg en A basic classification diagram of Streptococci Commonly used in medical school microbiology curricula own Huckfinne Sav_vas"
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