Reference cards, S to T

Salmonella enterica Bacterium · Motile non-lactose fermenting enteric rod

Sarcoptes scabiei Parasite · Burrowing mite that causes scabies

SARS-CoV-2 Virus · Enveloped positive-sense RNA coronavirus

Scedosporium species Fungus · Near-drowning mold; brain abscess opportunist

Schistosoma species Parasite · Blood flukes with snail intermediate host

Seasonal human coronaviruses Virus · 229E, NL63, OC43, HKU1 common-cold agents

Serotype and serotyping Concept · Antigen-based strain classification

Serratia marcescens Bacterium · Red-pigmented healthcare-associated rod

Shiga toxin-producing E. coli (STEC/EHEC) Bacterium · Shiga-toxin pathotype linked to HUS

Shigella species Bacterium · Nonmotile non-lactose fermenting rod

Sporothrix schenckii Fungus · Rose-gardener dimorphic fungus, cigar-shaped yeast

Staphylococcus aureus Bacterium · Gram-positive cocci in clusters

Staphylococcus epidermidis Bacterium · Coagulase-negative skin flora clue

Staphylococcus saprophyticus Bacterium · Coagulase-negative, novobiocin-resistant clue

Stenotrophomonas maltophilia Bacterium · Multidrug-resistant nosocomial non-fermenter

Sterilization vs disinfection Concept · Killing all life vs reducing most microbes

Streptococcus agalactiae Bacterium · Group B beta-hemolytic streptococcus

Streptococcus anginosus group Bacterium · Abscess-forming viridans (milleri) streptococci

Streptococcus gallolyticus (bovis) Bacterium · Group D strep linked to colon cancer

Streptococcus mutans Bacterium · Dental caries viridans streptococcus

Streptococcus pneumoniae Bacterium · Lancet diplococci and capsule clue

Streptococcus pyogenes Bacterium · Group A beta-hemolytic streptococcus

Streptogramins Antimicrobial · Synergistic 50S protein-synthesis blockers

Strongyloides stercoralis Parasite · Threadworm with autoinfection cycle

Sulfonamides and trimethoprim Antimicrobial · Folate-pathway antimicrobial concept

Superantigen Concept · Toxin that mass-activates T cells

Taenia species Parasite · Tapeworm with proglottid vocabulary

Talaromyces marneffei Fungus · Southeast Asian dimorphic fungus; fission yeast

Terbinafine (allylamine) Antimicrobial · Squalene epoxidase inhibitor

Tetanus Disease · Toxin-driven spastic paralysis from wounds

Tetracyclines Antimicrobial · 30S tRNA-entry class concept

Thayer-Martin agar concept Lab method · VCN-selective chocolate agar for Neisseria

Toxocara species Parasite · Dog/cat roundworm causing larva migrans

Toxoplasma gondii Parasite · Cat-associated apicomplexan clue

Toxoplasmosis Disease · Cat / undercooked-meat protozoal infection

Transduction Concept · Bacteriophage-carried DNA transfer

Transformation Concept · Uptake of free environmental DNA

Transmission routes Concept · How pathogens move between hosts

Transposon Concept · Mobile jumping DNA element

Treponema pallidum Bacterium · Spirochete with serology vocabulary

Trichinella spiralis Parasite · Encysted muscle larvae from undercooked pork

Trichomonas vaginalis Parasite · Motile flagellated protozoan

Trichosporon species Fungus · Arthroconidia-forming yeast; white piedra

Trichuris trichiura Parasite · Whipworm with barrel-shaped bipolar-plug egg

Triple sugar iron agar Lab method · Slant/butt fermentation + H2S blackening

Tropheryma whipplei Bacterium · Actinobacterium of PAS-positive Whipple disease

Trypanosoma brucei Parasite · Tsetse-borne cause of African sleeping sickness

Trypanosoma cruzi Parasite · Kinetoplastid protozoan with triatomine vector

Tuberculosis Disease · Airborne lung syndrome with latent and active forms

Typhoid fever Disease · Enteric fever from Salmonella Typhi