A metastatic cancerous tumour is termed ’sarcoma ' if the disorder is in
Immune system
Epithelial cells
Fibroblasts
Circulatory system
The spread of $AIDS$ disease is promoted by
Which one of the following statements is correct with respect to $AIDS$ ?
Cholera patient is administrated by ’saline drip' because
Damage to gastric mucosa is increased by alcohol plus
The best $HLA$(Human Leucocyte Antigen) match for transplants in order of preference is