In this article we will discuss about the analytic observational studies for animal disease etiology. Case-Control Studies of Etiology: The best way to make inferences about the etiology of a sporadic disease without accompanying data on the population base from which they originate is to perform a case-control study. This approach is particularly well suited to cope with rare diseases. [...]
If a control program involves substantial initial investment and the benefits gradually accumulate subsequently, it is necessary to weight annual costs and benefits by a factor making immediate costs and benefits more valuable than those occurring in the future. Benefit-cost analysis is a technique directly applicable to long-term investment in disease control and finds its principal application in the assessment [...]
The following article will guide you about how to design and conduct prophylactic and therapeutic field trials in veterinary medicine. Acquiring such knowledge is particularly relevant today because there has recently been an increasing awareness of the need for such trials. Knowledge of the principles of field trial design allows veterinarians to better interpret the literature in applied as well [...]