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Influenza A (H1N1) : Revised Guidelines as on 14.8.2009

In order to prevent and contain outbreak of Influenza-A H1N1 virus for screening, testing and isolation following guidelines are to be followed:


At first all individuals seeking consultations for flu like symptoms should be screened at healthcare facilities both Government and private or examined by a doctor and these will be categorized as under:

Category- A

  • Patients with mild fever plus cough / sore throat with or without body ache, headache, diarrhoea and vomiting will be categorised as Category-A.    They do not require Oseltamivir and should be treated for the symptoms mentioned above.  The patients should be monitored for their progress and reassessed at 24  to 48 hours by the doctor. 
  • No testing of the patient for H1N1 is required.
  • Patients should confine  themselves at home and avoid mixing up with public and high risk members in the family



  • In addition to all the signs and symptoms mentioned under Category-A, if the patient has high grade fever and severe sore throat, may require home isolation and Oseltamivir;
  • In addition to all the signs and symptoms mentioned under Category-A, individuals having one or more of the following high risk conditions shall be treated with Oseltamivir:
    • Children less than 5 years old;
    • Pregnant women;
    • Persons aged 65 years or older;
    • Patients with lung diseases, heart disease, liver disease, kidney disease, blood disorders, diabetes, neurological disorders, cancer and HIV/AIDS;
    • Patients on long term cortisone therapy.
    • No tests for H1N1 is required for Category-B (i) and (ii)
    • All patients of Category-B (i) and (ii) should confine themselves at home and avoid mixing with public and high risk members in the family.


In addition to the above signs and symptoms of Category-A and B, if the patient has one or more of the following:

  • Breathlessness, chest pain, drowsiness, fall in blood pressure, sputum mixed with blood, bluish discolouration of nails;
  • Irritability among small children, refusal to accept feed;
  • Worsening of underlying chronic conditions.

All these patients mentioned above in Category-C require testing, immediate hospitalization and treatment.


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