Microbiology Microbes (Lecture + Lab)

Staphylococcus aureus

• Gram positive (purple)

• “Staphylo-" cluster

• “-coccus” spherical

• Skin infections

Staphylococcus epidermis

• Gram positive (purple)

• “Staphylo-” cluster

• “coccus” spherical

• Catheter & prosthetic joint infections

Streptococcus pyogenes

• Gram positive (purple)

• “Strepto-” chain

• “coccus” spherical

• Pharyngitis, skin infection, rheumatic fever

Streptococcus pneumoniae

• Gram positive (purple)

• “Strepto-” chain (all chains begin as 2 cells)

• “coccus” spherical (strange shape due to capsule)

• Causes pneumonia (anything w/ pneumoniae will cause pneumonia)

Mycobacterium tuberculosis

• Acid-fast staining

• Causes tuberculosis

Escherichia coli

• Gram+

• Enterohemorrhagic E. coli

Pseudomonas aeruginosa

• Gram-

• Cystic fibrosis

• Does not cause pneumonia

Clostridium tetani

• Gram+

• Causes tetanus

Clostridium botulinum

• Gram+

• Cause botulism

Bacillus cereus

• Gram+

• Causes food poisoning

Serratia marcescens

• Gram-

• Healthcare-associated infection

Serratia marcescens

• Gram-

• Healthcare-associated infection

Klebsiella pneumoniae

• Gram-

• Pneumonia, UTI, & sepsis

Klebsiella pneumoniae

• Gram-

• Pneumonia, UTI, & sepsis

Corynebacterium diphtheriae

• Gram+

• Pharyngeal pseudonmembrane & systemic toxicity

Proteus vulgaris

• Gram-

• UTI & wound infections

Aspergillus fumigatus

• Eukaryote

• Causes aspergillosis

Rhizopus microsporus

Saccharomyces cerevisiae

Penicillium notatum

Rhizopus microsporus

Aspergillus fumigatus

Penicillium notatum

Penicillium notatum

Penicillium notatum

Rhizopus microsporus

Rhizopus microsporus

Aspergillus fumigatum

Aspergillus fumigatum

Aspergillus fumigatum

Saccharomyces cerevisiae

Plasmodium falciparum

(white circles are RBCs; purple is Plasmodium falciparum, a blood parasite)

Plasmodium falciparum

• Causes malaria

SARS-CoV-2 virus (coronavirus)

• SARS: Severe Acute Respiratory Syndrome