New Delhi, Aug 10 - Health Minister Ghulam Nabi Azad Monday announced a string of measures to tackle the spread of swine flu that has killed six people and affected over 860 in India in the last three months.

The steps are:

* More thermal scanners at all international airports in the country, besides Delhi. They would be installed on an emergency basis.

* The national stockpile of Oseltamivir or Tamiflu will be increased by another 20 million capsules.

* The testing capacity of existing 19 designated laboratories would be doubled.

* Guidelines for granting approval to private diagnostic laboratories for testing influenza A H1N1 have been finalised and communicated to the states.