The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers

AIDS patients are being fully cured cent per cent with proper care and nutrition

The HIV can be transmitted through eating food together with an infected person

Drug addicts are least susceptible to HIV infection

Viroids

Gemini viruses

Satellite viruses

Prions

Cocaine is given to patients after surgery as it stimulates recovery

Chewing tobacco lowers blood pressure and heart rate

Barbiturates when given to criminals make them tell the truth

Morphine is often given to persons who have undergone surgery as a pain killer

Patients who have undergone surgery are given cannabinoids to relieve pain.

Heroin accelerates body functions.

Malignant tumours may exhibit metastasis

Benign tumours show the property of metastasis