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Diagnosis of Swine Flu

For diagnosis of Swine Influenza A infection, respiratory specimen would generally need to be collected within the first 4 to 5 days of illness (when an infected person is most likely to be shedding virus). However, some persons, especially children, may shed Virus for 10 days or longer.

Sample Collection & Laboratory Diagnosis

· Preferred respiratory samples Nasal, Nasopharyngeal & throat swab

· Collection- on vaccine transport media

· Availability- with area & regional coordinator

· Storage of Samples : should be at 2-8⁰C until can be placed at -70⁰C.

· Transportation of Samples : dry ice in triple packaging. All samples should be labeled clearly and include patient’s complete information

· Laboratory biosafety measures should be followed for collections, storage, packaging and courier/ shipping of influenza samples.

· Available Laboratory tests:

- Rapid Antigen Tests: not as sensitive as other available tests.

- RT-PCR, Virus isolation, Virus Genome Sequencing, Four-fold rise in swine influenza A (H1N1) virus specific neutralizing antibodies

This post first appeared on Pediatric Surgery, please read the originial post: here

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Diagnosis of Swine Flu


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