Aids

Aids
Morphology –
Shape : Retrovirus/ Spherical Shaped
Genus : Lentovirus
Family : Retroviradae
Gram : Either Negative nor Positive
Test : Periodic acid-Schiff stains

How to test for AIDS
  * HIV antibody test
  a) Antibody tests are inexpensive and very accurate.
  b)  The ELISA antibody test (enzyme-linked immunoabsorbent) also known as EIA (enzyme immunoassay) was the first HIV test to be widely used.

Pathology –
Signs and Symptoms
  * Diarrhea that lasts for more than a week
  * Dry cough
  * Memory loss, depression and neurological disorders
  * Pneumonia
  * Profound, unexplained fatigue
  * Rapid weight loss
  * Recurring fever or profuse night sweats
  * Red, brown, pink or purplish blotches on or under the skin or inside the mouth, nose or eyelids
  * Swollen lymph glands in the armpits, groin or neck
  * White spots or unusual blemishes on the tongue, in the mouth, or in the throat
Opportunistic Infection
  * Progressive Multifocal Leukoencephalopathy (PML) – vision loss, speech disability then ultimately COMA
  * Candidiasis – yeast infection
  * Herpes Simplex
  * Liver Disease
  * Pneumocystis Carini
  * Tuberculosis (TB)

System | Examples of Infection/Cancer |
Respiratory system |     * Pneumocystis jirovecii Pneumonia (PCP)   * Tuberculosis (TB)   * Kaposi's Sarcoma (KS) |
Gastro-intestinal system |     * Cryptosporidiosis   * Candida   * Cytomegolavirus (CMV)   * Isosporiasis   * Kaposi's Sarcoma |
Central/peripheral Nervous system |     * Cytomegolavirus   * Toxoplasmosis   * Cryptococcosis   * Non Hodgkin's lymphoma   * Varicella Zoster   * Herpes simplex |
Skin |     * Herpes simplex   * Kaposi's sarcoma   * Varicella Zoster |

Stages
  * STAGE 1 : Primary HIV infection
      short flu-like illness
  * Clinically asymptomatic stage
      an average of ten years
       free from major symptoms
  *   STAGE 3 : Symptomatic HIV infection
      Over time the immune system...