Streptococci are Gram-positive cocci either diplococci (lanceolate shaped; S. pneumoniae) or in chains. They are catalase-negative (an important test to differentiate streptococci from...
Posts by Acharya Tankeshwar
The monospot test, also known as the Paul-Bunnell test, is a form of the heterophile antibody test used to rapidly screen infectious mononucleosis (mono). Epstein–Barr virus (EBV) causes the...
Tween 80 is the trade name of the detergent polyethylene derivative of sorbitan mono-oleate. Some Mycobacterium species possess an enzyme-lipase, that splits the compound and releases oleic acid and...
Japanese Encephalitis (JE) Virus: Life Cycle, Pathogenesis, Diagnosis
Fig: Geographic distribution of Japanese encephalitis virus Japanese Encephalitis (JE) virus was initially isolated in Japan in 1935. It is a leading cause of vaccine-preventable encephalitis...
A group of researcher published an article in “Nature” reporting the discovery of a new cell wall inhibitor, teixobactin, from a screen of uncultured bacteria grown in diffusion chambers in situ...
O-Nitrophenyl-β-D-galactopyranoside (ONPG) is structurally similar to lactose (i.e. O-Nitrophenyl-β-D-galactopyranoside is an analog of lactose), except that orthonitrophenyl has been substituted...