Sharada Phulpati died last night, hospital authorities said today. The flu continues to spread in the city with authorities reporting positive cases in one more school and two colleges in the city yesterday.

According to Dr Ashok Mehta, Joint Director, Health, 29 schools and six colleges in the city have so far reported swine flu cases since the first fatality on August 3.

A total of 21 patients are in ICU out of which eight were on ventilator, he added.

The National Institute of Virology (NIV), which is the only designated lab for testing of throat swabs for the virus, is flooded with samples of suspected patients, resulting in delay in obtaining results. Health officials are looking into the possibility of authorising private labs to test for the virus to reduce the load on NIV.