In this article we will discuss about Meaning and Routinely used Instruments for the Sterilizations of all Living Microorganisms. Meaning of Sterilisation: Sterilisation is the process of freeing of an article from all living microorganisms including their spores. Sterility is an absolute state, while the disinfection is a relative term indicating a mere removal of pathogenic microorganisms on the article. [...]
In this article we will discuss about the Antibiotic Sensitivity Test of Bacteria. Subcultures of the test organisms are made in broth and incubated for 6-18 hours. Any density of inoculum may be used but in most cases the surfaces of cultures plates may be sown with broth containing approximately 100 million cells per ml. After drying the surface, the [...]
The following points highlight the top two types of serology for recognition of antigen and antibody. The types are: 1. Agglutination 2. Precipitation. Serology: Type # 1. Agglutination: (a) Widal Test (Fig. 8.1): In the routine laboratory diagnostic Widal reaction, the patient's serum is tested simultaneously with the antigen of each organism likely to be responsible for enteric fever in [...]