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Toxoplasma gondii  Trichomonas vaginalis Dr Kamran Afzal Classified Microbiologist
Toxoplasma gondii
What is  Toxoplasma gondii ? ,[object Object],[object Object],[object Object],[object Object]
Morphology
Toxoplasma - Organelles
Transmission ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transmission ,[object Object]
Toxoplasmosis Cycle
Toxoplasmosis Cycle
The Toxoplasma life cycle
Factors determining infection prevalence ,[object Object],[object Object],[object Object],[object Object]
Oocyst ,[object Object],[object Object]
Tachyzoites
Latent Bradyzoite cysts confer life-long infection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Tachyzoite – Bradyzoite conversion
Symptoms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
Congenital toxoplasmosis ,[object Object],[object Object],[object Object],[object Object]
Toxoplasmosis Disease
Does  T. gondii  affect people? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Laboratory Diagnosis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Serology workup Antibody testing Antibody testing may be  Followed by prenatal PCR or by CT or MRI scans
Treatment ,[object Object],[object Object],[object Object],[object Object]
Prevention and Control ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Trichomonas vaginalis
Trichomonas vaginalis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Morphology
Prevalence ,[object Object],[object Object],[object Object],[object Object]
Transmission ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Trichomonas vaginalis  Life Cycle
Why is it Pathogenic in Females? ,[object Object],[object Object],[object Object]
Three main types of vaginitis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Vaginitis Differentiation
Vaginitis Differentiation Normal Trichomoniasis Candidiasis Bacterial Vaginosis Symptom presentation Itch, discharge, 50% asymptomatic Itch, discomfort, dysuria, thick discharge Odor, discharge, itch Vaginal discharge Clear to white Frothy, gray or yellow-green; malodorous Thick, clumpy, white “cottage cheese” Homogenous, adherent, thin, milky white; malodorous “foul fishy” Clinical findings Cervical petechiae “strawberry cervix” Inflammation and erythema Vaginal pH 3.8 - 4.2 > 4.5 Usually  <  4.5 > 4.5 KOH “whiff” test Negative Often positive Negative Positive NaCl wet mount Lacto-bacilli Motile flagellated protozoa, many WBCs Few WBCs Clue cells ( >  20%), no/few WBCs KOH wet mount Pseudohyphae or spores if non- albicans  species
Clinical Examination
What is Trichomoniasis? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Clinical Diagnosis ,[object Object]
Laboratory Diagnosis ,[object Object],[object Object],[object Object],[object Object]
[object Object]
[object Object],[object Object]
[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
Treatment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Prevention ,[object Object],[object Object],[object Object]

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