Question 1132699
Use a group of 10000, where 200 have Zika
------------------Test +-------------Test- ----------total
Person has-------174------------------26--------------200 false negatives are 26
Person doesn't----980-----------------8820-------------9800
Total------------1154-----------------8846------------10000

There are 1154 positive tests and 174 have the disease, so if positive, there is a 15.08% one has the disease.