Microbiology strep pyogenes and neisseria questions
What type of hemolysis does strep pyogenes cause?
What bacteria causes strep throat?
What are some symptoms of strep pyogenes?
pus filled lesions on the tonsils
Impetigo caused by strep pyogenes is?
Characteristics of pyoderma?
pus producing lesions of the face, arms and legs
yellow crust forms after pus filled lesions break open
crust stage is highly contagious
direct contact and contaminated fomites are modes of transmission
Enters the body through breaks in the skin and secretes toxins and enzymes which dissolve fascia?
Complication of untreated or incorrectly treated Strep throat or Scarlett Fever that can damage heart valves and heart muscles.
Filtration of Strep. pyogenes and its antibodies from the kidney is prohibited. Blood flow through the kidneys is blocked leading to elevated blood pressure and low urine output.
Streptococcus pyogenes known as "child-bed fever". Females may carry this Strep. in their vaginal lining. Semmelweiss helped to reduce cases by requiring hand washing
Spread from the site of infection through the bloodstream (Bacteremia and multisystem infections). Symptoms include pain, fever, chills, malaise, nausea, vomiting and diarrhea and the death rate is 40%.
Streptococcal Toxic Shock Syndrome
6 ways to for prevention of Strep. Infection
thoroughly cook and properly refrigerate foods
place antiseptics on small wounds and abrasions
do not touch your face with your hands
Watch for signs (sore throat, high fever, ear infections)
Get vaccines and shots
Gram-negative diplococci responsible for gonorrhoeae
Transmissions of gonorrhea:
may live 24 hours outside the body in moist conditions
through bathwater or linens shared with an infected adult
though birth canal to infant
can enter the blood stream
Symptoms of gonorrhea:
Watery discharge from urethra
2-5 days becomes purulent discharge
Vas deferens scarring
Often asymptomatic with 50% having no symptoms or signs of infection. Commonly infects cervix of uterus. Watery discharge may become purulent.
Female symptoms of chancres:
Fallopian tube scarring
Arthritis, meningitis, endocarditis, hepatitis
Common disease found in 40% of the population nasopharynx that can be severe and cause sudden death
Transmission of neisseria meningitidis:
respiratory droplets (airborne)
close contact such as soldiers in barracks, prisoners, college students living in dorms.
Irregular fever, loss of appetite
abrupt sore throat, vomiting
constipation, intense headache
Intolerance to light and sound
Contracted pupils, delirium
Retraction of head and neck pain
Convulsions, shock and coma