A substantial number of swine flu cases go undetected in Hyderabad as health authorities do not test swab samples from suspects for the influenza B viruses.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/no-lab-facility-may-result-spread-swine-flu-b-virus
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-hyderabad
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/telangana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hyderabad-d
[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/health-effects
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health