Inclusion Criteria:

1. > 18 years of age

2. males and females

3. receiving care as in-patient at St. Michael's Hospital

4. presenting with abdominal wounds resulting from general surgery with known or unknown
infection status.

Exclusion Criteria:

1. treatment with an investigational drug within 1 month before study enrolment

2. any contra-indication to routine wound care and/or monitoring

3. inability to consent