Thayer-Martin (VPN) media is a special type of agar used to isolate Neisseria species. What does VPN stand for anyways? Mnemonic is V – Very P – Popular N – Neisseria V – Vancomycin (inhibits gram-positive organisms) P – Polymyxin (inhibits gram-negative organisms excluding Neisseria species) N – Nystatin (inhibits fungi)
Basic Information: Warthin-starry stain is a silver-nitrate based staining technique. It is designed to visualize spirochete species including, 1. Bartonella spp. 2. Helicobacter spp. 3. Legionella spp. Mneominic: STAR WARs with THIN and SPIRaling SILVER kNIGHT!
‘Chocolate Agar’ is a special type of media used to culture H. influenza since the organism requires ‘Factor V’ to grow. For your reference, ‘Factor V’ is NAD+ (Nicotinamide Adenine Dinucleotide). If you live in North America, you will probably know Kellogg’s cereal called ‘Vector’. It’s tasty and rich in fiber but also quite expensive […]