So, let’s dive into genitals. Diagnosing genital infections has a lot of overlap with sexually transmitted infections. Not all genital infections however, are transmitted by sexual contact. For example, yeast infections in men and women as well as balanitis in men who have no concept of penis hygiene.
For the life of me I cannot understand why some men don’t clean themselves properly and don’t clean under their foreskins. Cheesy smegma can’t be something a bloke wants to encourage especially if he wants any sexual action. This point was a special one for Lauren from Mouthy Broadcast. Read More
As I mentioned in episode 49, my favourite test in microbiology is the Gram’s stain. This test is named after Hans Christian Gram. Gram was a Danish medical doctor who lived from 1853 to 1938. He developed his staining method in 1884.
He described a differential staining method which would separate bacteria based on the structure of the cell wall as well as the shape of the bacteria. Bacteria, in general, are either Gram-positive or Gram-negative. Some bacteria, like the mycobacteria do not stain well because of the waxy mycolic acid in their cell walls. Some bacteria are Gram-variable and do not stain predictably. A good example is Gardnerella vaginalis which is involved in the complex disease known as bacterial vaginosis. Gardnerella vaginalis is a small Gram-variable bacterium that attaches to vaginal epithelial cells. Read More
So, what is sputum? Sputum is the material (or phlegm) that is coughed or expectorated from the lower respiratory tract, that’s mainly the bronchi. While true sputum reflects the lower respiratory tract, to get it out, it must pass through the upper respiratory tract, which means sputum is prone to contamination with material in the throat and mouth, especially the bacteria in the mouth and sometimes the nose if the patient also has rhinorrhoea (a runny nose). Read More
A blogger and Facebook friend named Jules asked me recently, can gluten intolerance be treated with FMT?
There are three things to cover and I don’t expect I’ll really be able to answer the question given the controversy and hype. Read More
If you’re not a microbiologist or chemist, I bet you’re thinking I’m about to launch into a show about fungi. Well, no, I’m still doing the diagnostics series of Medical Fun Facts.
MALDI-TOF is an acronym for Matrix-Assisted LASER Desorption/Ionisation Time of Flight. And, just to be a pedant, LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Read More