<p>In the methods, <strong>''We used a Likert scale to rank attributes: as poor (65%''- </strong>this statement is incorrect and technically wrong. The Likert scale is used to rank attributes on an odd number scale such as 3,5,7 etc For example on a 3-number scale, it might be, Good, average and poor</p><p>In the results- How was the sensitivity of the system assessed? This was not reported e,g comparison of the prevalence from the PMTCT surveillance with prevalence from a well-conducted national survey.&nbsp;</p><p>Also, the non-participation of the private health facilities would not only affect the representativeness of the system, it would also affect the sensitivity</p>