This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: PH Care, Elements & Principles, Subject name: Social & Preventive Medicine
Single disease control strategy done by program known as 
Select and explain. 
A. Horizontal program, B. Veical program, C. Interventional program, D. Volunteer program
B: Veical program
Answer: B: Veical program 
Explanation: Health systems are made up of: * "Horizontal system" of general services, providing prevention and care for prevailing health problems. "Veical programmes" for specific health conditions .