1. Health Care Informatics

2. Sub-domains of Health Informatics
Medical informatics
Clinical informatics 
Nursing informatics 
Public health informatics
Bioinformatics 
Imaging informatics 
Pharmacy informatics
Dental informatics

3. Veterinary informatics 
Consumer health informatics
eHealth 
Clinical research informatics 
Translational research informatics
etc

4. Medical Informatics Medical Informatics is the branch of science concerned with the use of computers and communication technology to acquire, store, analyze, communicate, and display medical information and knowledge to facilitate understanding and improve the accuracy, timeliness, and reliability of decision making

5. Computers + communication technology
acquire, store, analyze, communicate, and display Medical information + knowledge
facilitate , improve
Decision making

6. Medical informatics' and ‘Health informatics' 'Health informatics' is now tending to replace the previous term 'medical informatics', reflecting a widespread concern to define an information agenda for health services which recognises the role of citizens as agents in their own care, as well as the major information-handling roles of the non-medical healthcare professions.

7. - Individual health Health care Public health Research
Medical informatics concerned with optimal use of information to improve:
- Individual health
Health care
Public health
Research

8. Public Health Informatics
“the systematic application of information and computer science and technology to public health practice, research and learning”

9. Activities of public health informatics:
Collection and storage of vital statistics
Collection and reporting of communicable diseases
Disease surveillance
Display disease statistics and trends
Immunization
Hospital statistics
others