Causative Agent Study Sheet
Angela Salemi

Gram Negative Bacteria
Scientific Name
Common/Slang names
System it affects
Interesting
Text page
Bartonella henselae
Cat-scratch disease
Skin/eyes
Transmitted through flea feces on cat claws, which scratch the skin and cause the infection
653-654
Anaplasma phagocytophilum
HGA or Human Granulocytic anaplasmosis
Lymphatic
Tick borne illness; causes flu-like symptoms
660
Ehrlichia
Ehrlichiosis
Lymphatic
Vector is the lone star tick; main animal reservoir is the white tailed deer
660
Rickettsia typhi
Endemic murine typhus or
Vascular
Rodents are common hosts; occurs sporadically
660-661
Rickettsia prowazekii
Epidemic typhus
Vascular
Occurs in epidemics; flourishes in crowded, unsanitary places
660-661`
Rickettsia Rickettsii
Rocky Mountain Spotted Fever
Skin/eyes
Common in the US Southeast and Appalachia; is a tick parasite
661
Brucella
Brucellosis/ Undulant Fever
Lymphatic
Common in the Middle East, Mediterranean, SE Europe, Asia, Latin America and the Caribbean; potential bioterrorism agent
649-650
Neisseria gonorrhoeae
Gonorrhea
Reproductive
Very common STI; can also be anal or pharyngeal
754-756
Neisseria gonorrhoeae
Ophthalmia Neonatorum
Skin/eyes
Of newborns, passed from the mother to the eyes of the child and causes infection
755
Neisseria gonorrhoeae
Pelvic Inflammatory Disease/PID
Reproductive
Can cause uterine tube damage if left untreated
758
Neisseria meningitidis
Meningitis/ Meningococcal meningitis
Nervous
Rash that doesn’t fade when pressed, begins as a sore throat
618
Burkholderia
Nosocomial infections/ Hospital acquired infection
***
Resultant of a hospital stay
414
Burkholderia psudomallei
Melioidosis
Respiratory
Distributed in soils
697
Bortadella pertussis
Whooping cough
Respiratory
Distinctive sounding cough; affects mostly young children
687
Spirillum minor
Rat bite fever/ Spirillar fever or Sodoku
Lymphatic
Caused by a rate bite
654-655
Pasturella multocida
Animal bites
Skin
Can cause sepsis if left untreated
653
Shigella
Bacillary dysentery
Digestive
Spread only between people
718
Haemophilus influenzae
Epiglottitis
Respiratory
Inflammation of the epiglottis
683
Haemophilus influenzae
Meningitis
Nervous
Mostly occurs in young children, there is a vaccine for it
618
Haemophilus influenzae
Otitis media/ ear infection
Respiratory
Causes inflammation of the middle ear
685
Haemophilus influenzae
Pneumonia
Respiratory
Alcoholics, diabetics, cancer patients and people with poor nutrition of especially susceptible
693
Haemophilus influenzae
Conjunctivitis/ Pink eye
Skin/ Eyes
Inflammation of the conjunctiva
609-610
Haemophilus ducreyi
Chancroid
Reproductive
Is a STI; occurs in tropical areas
762
Vibrio Cholerae
Cholera
Digestive
People who take antacids are especially susceptible; causes “rice and water stools”
722-723
Scientific Name
Common/Slang names
System it affects
Interesting
Text page
Vibrio parahaemolyticus
Gastroenteritis
Digestive

723
Vibrio vulnificus
Gastroenteritis
Digestive
Can also cause skin infections, as it lives in coastal sea waters; can also cause sepsis
723
Escherichia coli
Cystitis
Urinary
Inflammation of the bladder; also causes dysuria
752
Escherichia coli
Gastroenteritis
Digestive
Can be found on contaminated leafy vegetables and in ground meat
723-724
Escherichia coli
Pyelonephritis
Urinary
Inflammation of the kidneys
752
Klebsiella pneumoniae
Pneumonia
Respiratory
Commonly found in soil
311
Pseudomonas aeroginosa
Conjunctivitis
Skin/Eyes

559
Pseudomonas aeroginosa
Dermatitis
Skin/ Eyes
Comes from swimming water and hot tubs
597
Pseudomonas aeroginosa
Otitis externa
Respiratory
Outer ear infection
598
Pseudomonas fluorescens
Septicemia
Lymphatic
Infection of the blood stream
646
Legionella pneumophila
Legionellosis or Legionnaire’s Disease
Respiratory
First gained notoriety after an American Legion meeting in 1976
694
Yersinia pestis
Plague/ Black Death
Lymphatic
Middle Ages; transmitted by rat fleas; killed a TON of