Table 1 Example search strategy from OVID Platform: Scopus 1947 to 2015 Week 19

1

“chronic wasting disease”

2

“CWD”

3

“TSE” OR “transmissible spongiform encephalopathy”

4

Prion*

5

#1 OR #2 OR #3 OR #4

6

deer OR cervid*

7

6 AND NOT (farm* OR captiv* OR tame* OR experiment* OR laboratory OR “in vitro”)

8

#5 AND #7

9

Limit 8 to English AND (US OR CANADA)