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What are the 3 effects of infectious endocarditis?
- - Bacteria can initiate infectious endocarditis
- - And stimulate the immune system
- - The mature vegetation formed during the infection can detach from an infected heart valve and become an embolus that can then lodge in some distal organ.
what are the 2 most common causes of infectious endocarditis?
Strep viridans and staph aureus
What are the different types of plague?
- Sylvatic: seen in wild rodents and the primary reservoir of the organism
- Urban: see in cities, more infectious form because there are more potential hosts in the city than in the wild.
Symptoms of tularemia: transmission through arthropod bite
- swollen lymph glands
- flu-like symptoms
- skin ulceration
inhalation tularemia symptoms:
- respiratory disease
- swollen lymph nodes
- pain under the breastbone
What decides how tularemia will be present?
The inoculation site, the transmission,how far into the body the pathogen is spread
Brucella is also known as?
Undulant fever b/c the pt in some cases dvelops a cycling pattern of symptoms called undulant fever
How are CMV infections specifically diagnosed?
- CMV can be isolated from saliva, cervical secretions, seme, urine, and wbcs for years after the initial infection
- But difinitive diagnosis can be made by inclusion bodies
How are arbovirus infections spread?
Mosquitos, sometimes mosquitos can pass the virus down a generation
Chagas disease is also known as?
Trypanomsomiasis (sleeping sickness)
What are the 2 life forms of the trypsonomas cruzi?
- Amistogotes: a large number created which cause the host cll to rupture
- Trypomastigote: Circle in blood to invade other host cells
- Causitive agent: Yersinia pesits
- Mode of transmission: vector, bite of a rat flea (xenopsylla cheopis)
- Causitive agent: Francisella tularnesis
- Transmission: Inhalation, tick-bite, ingestion of conta,minated meat or water, directly by contact with an abrasion or cut while skinning an infected animal
- Causitive agent: various bacteria of the genus brucella
- Transmission: by occupational contact or by ingesting contaminated animal products
- Causitive agent: the spirochete Borrelia Burgdorferi
- Transmission: through the Ixodes tick
- Causitive agent: Human herpesvirus 4
- Transmission: Transmitted only after repeated contact with infected individuals
- Causitive agent: filoviruses
- Transmission: person to person
- Causitve agent: the parasite trypanosoma cruzi
- Transmission: vector, the reduvid, a larged winged insect that feeds on sleeping hosts
- Causitive agent: Wuchereria bancrofti and Brugia, both threadlike worms that lay coiled up in the lymphatic vessels of a human host for decades
- Transmission: Mosquito
- Colonization of the heart by bacteria
- Deposition of excessive amounts of platelets at the site
- Depositin of fibirn at the site
- Formatiion of mature vegetation
Organisms of the genus Grancisella cause
The most contagious form of plague is
The pneumonic form