2025-04-14 Microbiology For The Health Sciences

Lecture 1

Fungi and protozoan are eukaryotes and are becoming

resistant

Fungi that invade keratinized tissue (epidermidis) are called

dermatophytes

dermatophytes lead to

dermatomycoses

how can you get Ringworm - Tinea corporis, T. cruris, T. capitis, T. unguium?

Contagious and usually one comes in contact with the organism from unclean environments and fomites.

How can Ringworm - Tinea corporis, T. cruris, T. capitis, T. unguium be treated?

All can be treated with antifungal drugs but it may take many weeks

Which ringworm causes a secondary infection?

T. pedis

what are the 4 kinds of ringworm?

Tinea corporis, T. cruris, T. capitis, T. unguium, T. pedis

Candidiasis

Candida albicans

Candidiasis - Candida albicans is part of

the normal flora

what does symtoms does Candidiasis - Candida albicans cause?

1. thrush

2. vaginitis, infect tissues

what is the most nosocomial fungal infection?

Candidiasis - Candida albicans

why is Candidiasis - Candida albicans a nonsomical fungal infection?

• When you are treating someone with a lot of antibiotics, the normal flora disappears, the CA has no competition 

• Seems to resist phagocytosis 

• Any change of pH in vagina - upsets flora in vagina - leads to infection 

• Self-limiting - resolves on its own 

Candida auris is an

emerging fungal infection causing worldwide concern

Candida auris is a serious infection in hospitalized patients which often enters the bloodstream and spreads throughout the whole body. what does that mean?

• Ubicudis - find it in hospital and healthcare settings 

• No one understands where it comes from - maybe climate change? 

• Can easily go systemic - sepsis 

is Candida auris highly resistant to anti fungal drugs

yes it is highly resistant to antifungal drugs

Vulvovaginal Candidiasis is

most cases caused by Candida albicans.

what kind of infetion is Vulvovaginal Candidiasis?

opportunistic infection which can occur with uncontrolled diabetes, change in pH, hormone change, and long-term antibiotic therapy. 

what is Trichomoniasis caused by?

a protozoan (Trichomonas vaginalis)

how is Trichomoniasis transmitted?

sexually

Trichomoniasis infects the urogenital tract surfaces in both males (rarley have symtoms) and females, many cases are …

asymptomatic

Trichomoniasis includes ..

T. hominis (intestinal tract) and T. tenax (mouth) are normal commensals in our body.

Coccidioidomycosis

Coccidioides immitis

Coccidioidomycosis - Coccidioides immitis is

is common in the Southwest USA and sometimes referred to as Valley Fever