The H1N1 (swine flu) virus has not mutated and patients are still responding to Tamiflu, a joint study by the National Institute of Virology (NIV) and the National Centre for Disease Control (NCDC)
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/silver-lining-no-mutation-h1n1-says-study
[2] http://admin.indiaenvironmentportal.org.in/category/author/anuradha-mascarenhas
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-mumbai
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/swine-flu
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/influenza
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/infectious-diseases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drugs
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health