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Human Human Bacterial Bacterial DiseasesDiseases
Who do they affect?Who do they affect?
Bacteria cause half of Bacteria cause half of all human diseasesall human diseases
Bacteria are carried in Bacteria are carried in air, food, water, and air, food, water, and can invade woundscan invade wounds
How are they identified?How are they identified?
Bacteria are classified by shapes – Bacteria are classified by shapes – spheres, rods, and spirals.spheres, rods, and spirals.
Bacteria cell walls are made up of Bacteria cell walls are made up of different arrangements of sugars and different arrangements of sugars and amino acids and react differently to amino acids and react differently to gram stainsgram stains
Gram + stain purple and Gram – Gram + stain purple and Gram – stain pinkstain pink
Streptococcus mutans Streptococcus mutans
Causes tooth decayCauses tooth decay Bacteria lives in mouthBacteria lives in mouth Destroys enamelDestroys enamel Causes toothache/lossCauses toothache/loss Area removed and filledArea removed and filled
Group A beta-hemolytic Group A beta-hemolytic StreptococcusStreptococcus
Causes strep throatCauses strep throat Symptoms: fever, sore throat, Symptoms: fever, sore throat,
swollen neck glandsswollen neck glands Inhaled or ingestedInhaled or ingested Treated with antibioticsTreated with antibiotics
Mycobacterium Mycobacterium tuberculosistuberculosis
Causes tuberculosisCauses tuberculosis Symptoms: fatigue, fever, night Symptoms: fatigue, fever, night
sweats, cough, weight loss, chest sweats, cough, weight loss, chest painspains
InhaledInhaled Treated with antibioticsTreated with antibiotics
Clostridium tetaniClostridium tetani
Causes tetanusCauses tetanus Symptoms: stiff jaw, muscle spasms, Symptoms: stiff jaw, muscle spasms,
paralysisparalysis Thru punctures and woundsThru punctures and wounds Clean wounds/antibiotics/vaccineClean wounds/antibiotics/vaccine
Borrelia burdorferiBorrelia burdorferi
Causes Lyme diseaseCauses Lyme disease Symptoms: site rash, chills, body Symptoms: site rash, chills, body
aches, joint swellingaches, joint swelling Thru tick bitesThru tick bites Treated with antibioticsTreated with antibiotics
Streptococcus Streptococcus pneumoniaepneumoniae
Causes pneumoniaCauses pneumonia Symptoms: cough, fever, weight loss, Symptoms: cough, fever, weight loss,
chest painchest pain InhaledInhaled Treated with antibioticsTreated with antibiotics
Neissereia gonorrhoeaeNeissereia gonorrhoeae
Causes gonorrheaCauses gonorrhea Symptoms: open sores and painful Symptoms: open sores and painful
urinationurination Thru sexual contactThru sexual contact Treated with antibioticsTreated with antibiotics
Treponema pallidumTreponema pallidum
Causes syphilisCauses syphilis Symptoms: open sores, painful Symptoms: open sores, painful
urination, rash, aches/pains, damage urination, rash, aches/pains, damage to brain and spinal cordto brain and spinal cord
Thru sexual contactThru sexual contact Treated with antibioticsTreated with antibiotics
Bacillus anthracisBacillus anthracis
Causes anthraxCauses anthrax Symptoms: rash, difficulty breathing Symptoms: rash, difficulty breathing
and seeingand seeing Thru inhalation, ingestion, Thru inhalation, ingestion,
cuts/woundscuts/wounds Treated with antibioticsTreated with antibiotics
Vibrio choleraeVibrio cholerae
Causes choleraCauses cholera Symptoms: diarrhea, vomiting, Symptoms: diarrhea, vomiting,
dehydrationdehydration Thru drinking contaminated waterThru drinking contaminated water Treated with antibioticsTreated with antibiotics