M28 Protozoa Flashcards Preview

Microbiology 2 > M28 Protozoa > Flashcards

Flashcards in M28 Protozoa Deck (25):
1

what is a a protozoa

single celled eukaryote
lack cell wall
free living anaerobes
some paratsitc

2

what ar some characteristics of protozoa

have nuc env
diff compartments
has histone proteins
has cytoskel
may/not have mito

3

what are the major protozoan disease of man

leishmaniasis 150 million
malaria - 3.3 bill
toxoplasma - 2 bill
(oral protozoa 4-52%)

4

what are the protozoa of the oral cavity

trichomonas tenax
trichommonas vaginalis
entamoeba gingivalis

5

what is trichomoniaisi

T vaginalis STD
infertile
pelvic inflam
cervical neoplasia

6

why else can T tenax and T vaginalis cause

broncho pulmonary infection
assc lung disease

7

how is trichomoniasis treated

metronidazole

8

what is trichomonad tenax

saprophyte
lactoferrin
assc with poor oral hygiene
21% perio disease

9

when is entamoeba seen

amoebic dysentry
amoebic liver abscess
other harmless sp

10

what is entamoeba gingivalis

ingest microbes
cause perio disease
pulmonary abscess
carriage often

11

what are two types of gastro intestinal diseases

entameobosis

cryptosporodiosos

12

what is entameobosis nd how treat

infect - cysts shed = amoebic dysentry or colitis
treat = metronidazole and chloroquinone

13

what is cryptosporidiosos

poor hygiene
rehydration
cramps
diarrhoea

14

how bad is the effect of malaria on pop

3.3 bill at risk

15

how's malaria transmitted

by mosquito
ANOPHELES MOSQUITO

16

what protozoa causes malaria

plasmodium falciparum (most dangerous)
plasmodium vivax/ovale/malariae

17

where are mosquitos found

stagnant water in hot countries

18

what is the infecttous vector for malaria

female as male doesn't fee don blood
bite between sunset and rise

19

what is the lifecycle of mosquito

infects - release sporozoites which travel to liver and divide

merozoites released and infect erythrocytes

remodelly RBC = exp surface P's, prod knobs and mauer clefts

20

when do RBC rupture

48hrs = 16-32 merozites released

derdtaion decrease oxygen carriage

21

what are the symptoms of malria

flu
high fever
successive waves
delirium
seizures
death

22

what are some common drugs to prevent malaria

chloroquine
mefloquine
deoxycline

23

how is malaria treated

prompt
quinine
chloroquine
combination therapy so no resist

24

what is toxoplasma

obligate intracellular parasite
life cycle involving rents

25

what is toxoplasmosis

asymptomatic
treat wit sulphadiazine
assc with risk taking activates