Category Archives: Microbiology

How to read the cumulative antibiogram and its usefulness

Here are example antibiograms for Hunter New England (NSW). These are constructed by assessing the % susceptible for specific bugs and drugs, taking only the first isolate of a species per person per annum.  Where is it possible extrapolate susceptibility … Continue reading

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Nocardia (part 2 topic)

Guest posting: Dr Syeda Navqi, Microbiology Registrar, Pathology North.  Group: Aerobic actinomycetes Gram positive bacteria that are usually filamentous and branched, commonly producing a fungus like mycelium that fragments into rod shaped or short coccoid form. All grow better under … Continue reading

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Human Papilloma Virus key papers: testing strategy, impact of immunisation, women’s knowledge (PNG)

HPV and cervical cancer remain incredibly important topics for detailed study by all post graduates.  Again, these papers are available as free text via the PUBMED links provided. Field Evaluation of Xpert HPV Point-of-Care Test for Detection of Human Papillomavirus … Continue reading

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Leishmaniasis case report and overview

Case report, overview, diagnosis and treatment: Dr A Oon Leishmania July 2017 Life cycle WHO Leishmaniasis site From Stark et al, case report Medical Journal of Australia 2007 :  A: Non-healing New World cutaneous leishmaniasis ulcer on the left forearm. B: … Continue reading

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Toxoplasma, Entamoeba histolytica, Amoebic meningoencephalitis & keratitis

Toxoplasmosis  Overview- Toxoplasmosis Life cycle Relevant manifestations to consider further: congenital – diagnosis – excellent recent guide  reactivation in an immunocompromised (deficient cell-mediated immunity ) patient  such as someone with advanced HIV – then cerebral abscess (may be multiple), retinitis or … Continue reading

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Plasmodium species (malaria)

Recent CPHL malaria workshop materials – make sure you have a copy and review same. Malaria 2014 John Hunter Hospital program tutorial overview Health information system strengthening and malaria elimination in Papua New Guinea.  Rosewell A et al.   Malar J. 2017 Jul 5;16(1):278. … Continue reading

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Invasive pneumococcal disease – the impetus for immunisation

Invasive Pneumococcal Disease Surveillance (Australia) – recent report gives you a good idea of which serotypes of pneumococcus are within the different vaccines and the recent changes to serotype-specific IPD indidence – we are seeing quite an impact that is … Continue reading

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Pertussis – diagnosis, outbreaks and incidence

Culture appearances – see the Atlas – bisected pearl appearance of the colonies on charcoal agar. Diagnostic pointers – Diagnosis of pertussis Outbreak literature – local studies – Pertussis outbreak PNG 2012, PNG medical journal 1977 report on pertussis outbreak.  Earlier report from Highlands … Continue reading

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Online microbe atlas- Gram stain and culture plate photos

This resource provides free to air photos of great quality-just the thing for your presentations and learning. http://microbe-canvas.com/Bacteria/gram-positive-cocci/streptococci/catalase-negative/beta-hemolysis/pyrase-positive-2/streptococcus-pyogenes.html

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Microbial Genomics for Public Health and Clinical Microbiology- Nov 2016 symposium report

This recent symposium was a great wrap up of whole genome sequencing at its many applications organised by the Doherty Institute in Melbourne.  Here is my (short) Doherty-symposium report which will give you some idea of where things are going- a rapidly developing … Continue reading

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