13 results
Leishmaniasis Life Cycle
1) Sandfly takes a blood meal (injects promastigote stage into the skin)
Human Stages:
2) Promastigotes
stage into the skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Clonorchiasis - Clonorchis sinensis Life Cycle
1) Embryonated eggs passed in feces.
2) Eggs ingested by the snail
encyst in the skin ... Metacercariae in flesh or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Intestinal Hookworm Life Cycle
1) Eggs in feces
2) Rhabditiform larva hatches
3) Development to filariform larva in environment
4)
larva penetrates skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Strongyloides fuelleborni Lifecycle
Free-Living Cycle
1) Eggs containing rhabditiform larvae passed in feces.
2) Rhabditiform larvae hatch in environment.
penetrate the intact skin ... pathophysiology #infectiousdiseases ... #cdc
Onchocerciasis - Onchocerca volvulus Life Cycle
1) Blackfly (genus Simulium) takes a blood meal (L3 larvae enter
typically are found in skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Disease by CD4 ... Count: Any CD4 ... • Polymorphic skin ... , • Multiple skin ... differential #diagnosis #infectiousdiseases
Strongyloides Stercoralis Lifecycle
Free-Living Cycle:
1) Rhabditiform larvae in the intestine are excreted in stool. 
2) Development into
penetrate the intact skin ... intestinal mucosa (or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Schistosoma Life Cycle - Schistosomiasis
1) Eggs shed from infected human: in feces, in urine
2) Eggs hatch
Cercariae penetrate skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Amebiasis - Balamuthia mandrillaris Life Cycle
1) Cysts
2) Trophozoite
3) Mitosis
4) Amebae (cysts and trophozoites) can enter humans
ulcerated or broken skin ... disseminated disease or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Pulmonary • Skin ... • M genavense Skin ... • M fortuitum Skin ... Advanced HIV (CD4 ... differential #diagnosis #infectiousdiseases