In this article we will discuss about Non-Pathogenic Microorganisms:- 1. Groups of Non-Pathogenic Microorganisms 2. Activities of Non-Pathogenic Microorganisms. Groups of Non-Pathogenic Microorganisms: Microorganisms may be divided into two groups — according to their activities: (a) The useful, and (b) The harmful. The first group the harmless, non-pathogenic microorganisms to man live mostly in the environment. They are called as [...]
In this article we will discuss about the Pyrexia of Unknown Origin (PUO):- 1. Causes of PUO 2. Infection of PUO 3. Laboratory Diagnosis. Causes of PUO: The most common causes of prolonged PUO are: (a) Chronic infections; (b) Tumours, (c) Connective tissue disorders; (d) Granulomatous diseases (e) Drug hypersensitivity reactions (Table 94.1): Infection of PUO: Aetiology: As a cause [...]
In this article we will discuss about Blood:- 1. Blood Composition 2. Blood Circulation 3. Factors of Infection. Blood Composition: Plasma: The fluid portion of the fresh un-coagulated blood is known as plasma which makes up 55 per cent of whole blood. It is yellowish and transparent. It contains proteins, food for the body tissues and waste products from the [...]