Image 1: Borrelia burgdorferi under light microscopy (1000x with oil)
Wednesday, May 23, 2007
Miscellaneous - Pictures
Image 2: Single Borrelia burgdorferi under transmission electron microscopy
Miscellaneous - Pictures
Image 5: Microscopic view of Rickettsia typhi, causative agent of murine typhus
Tuesday, May 22, 2007
Miscellaneous - Picture links
Image 1: Extracted from http://acpcommunity.acp.edu/Facultystaff/moon/Biology1/Bacteria
Image 2: Extracted from http://www.cdc.gov/ncidod/dvbid/lyme/ld_Borreliaburgdorferi.htm
Image 3: Extracted from http://textbookofbacteriology.net/Lyme.html
Image 4: Extracted from http://textbookofbacteriology.net/Lyme.html
Image 5: Extracted from http://www.hgsc.bcm.tmc.edu/projects/microbial/microbial/graphics/rtyphi.jpg
Image 6: Extracted from http://www.the-travel-doctor.com/typhus.htm
Image 7: Extracted from http://www.cdc.gov/ncidod/eid/vol4no2/azad.htm
Image 2: Extracted from http://www.cdc.gov/ncidod/dvbid/lyme/ld_Borreliaburgdorferi.htm
Image 3: Extracted from http://textbookofbacteriology.net/Lyme.html
Image 4: Extracted from http://textbookofbacteriology.net/Lyme.html
Image 5: Extracted from http://www.hgsc.bcm.tmc.edu/projects/microbial/microbial/graphics/rtyphi.jpg
Image 6: Extracted from http://www.the-travel-doctor.com/typhus.htm
Image 7: Extracted from http://www.cdc.gov/ncidod/eid/vol4no2/azad.htm
Sunday, May 20, 2007
Final diagnoses
1) Murine typhus
Causative microorganism: Rickettsia typhi
Transmission vehicles: Lice or fleas
How we deduced: It is highly probable as the patient is living in unhygienic conditions and there is also an infestation of fleas. Moreover, the patient feeds stray dogs and cats which could have fleas carrying Rickettsia typhi.
Sample(s) taken: Blood
Collection via: Venipuncture (venous blood)
Preliminary testing: Full blood count, Blood culture
Confirmatory testing: Direct Fluorescent Antibody (DFA), Skin rash biopsy
2) Lyme disease
Causative microorganism: Borrelia burgdorferi
Transmission vehicles: Rodent ticks
How we deduced: The infestation of rats in his premise makes the probability of contracting lyme disease a reality for the patient.
Sample(s) taken: Blood
Collection via: Venipuncture (venous blood)
Preliminary testing: Physical investigations for visible rash, ELISA to detect lyme antibodies
Confirmatory testing: Lyme disease testing (Anti-borrelia burgdorferi IgM/IgG), Western Blot, Polymerase Chain Reaction (PCR)
Causative microorganism: Rickettsia typhi
Transmission vehicles: Lice or fleas
How we deduced: It is highly probable as the patient is living in unhygienic conditions and there is also an infestation of fleas. Moreover, the patient feeds stray dogs and cats which could have fleas carrying Rickettsia typhi.
Sample(s) taken: Blood
Collection via: Venipuncture (venous blood)
Preliminary testing: Full blood count, Blood culture
Confirmatory testing: Direct Fluorescent Antibody (DFA), Skin rash biopsy
2) Lyme disease
Causative microorganism: Borrelia burgdorferi
Transmission vehicles: Rodent ticks
How we deduced: The infestation of rats in his premise makes the probability of contracting lyme disease a reality for the patient.
Sample(s) taken: Blood
Collection via: Venipuncture (venous blood)
Preliminary testing: Physical investigations for visible rash, ELISA to detect lyme antibodies
Confirmatory testing: Lyme disease testing (Anti-borrelia burgdorferi IgM/IgG), Western Blot, Polymerase Chain Reaction (PCR)
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