Swine Flu

Last Updated on Mar 17, 2023
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Infographics on Swine Flu

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Infographics on Swine Flu
Despite the World Health Organization's declaration that the global pandemic was over, New Zealand is still experiencing a significant level of swine flu, health authorities have said.

"While some countries have seen H1N1 virus decline or crowded out by other strains, this is not the case in New Zealand," the deputy director of public health, Darren Hunt, said.

Four people are believed to have died from swine flu in New Zealand this year.

Hunt said there had been "significant outbreaks" in some areas of New Zealand, which had resulted in high levels of absenteeism from work and school and higher than normal hospital admissions.

"The pandemic influenza strain is the predominant strain circulating this winter," he said.

"We are seeing higher levels of hospitalisation in areas that weren't severely affected last year.

"To date, there had been over 300 people admitted to hospital this year with confirmed H1N1, which includes over 30 people admitted to intensive care."

WHO Director General Margaret Chan told a telephone news conference from Geneva that H1N1 had "largely run its course".

"The world is no longer in phase six of the pandemic alert. We are now moving into the post-pandemic period," she said.

The WHO's top flu official, Keiji Fukuda, said the influenza virus was no longer considered capable of causing another pandemic, even if more severe outbreaks might occur in some countries.

Swine flu has killed more than 18,449 people and affected some 214 countries and territories since it was uncovered in Mexico and the United States in April 2009, according to WHO data.


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This is an informative article on this subject and I really enjoyed the read. My regards and appreciation to the writer of this amazing material... To know more about Flu Symptoms


I am so worried about catching the swine flu. I have done everything in my power to protect myself and my family. Even to the point that if it were to become so out of control that we needed to be locked in our house for some time due to the pandemic.


Very good illustrations by Dr.GANGADHAR RAO HYDERABAD


An interesting Abstract from a recent paper on Swine Flu

Novel Swine-Origin Influenza A (H1N1) Virus Investigation Team

Background - On April 15 and April 17, 2009, novel swine-origin influenza A (H1N1) virus (S-OIV) was identified in specimens obtained from two epidemiologically unlinked patients in the United States. The same strain of the virus was identified in Mexico, Canada, and elsewhere. We describe 642 confirmed cases of human S-OIV infection identified from the rapidly evolving U.S. outbreak.

Methods - Enhanced surveillance was implemented in the United States for human infection with influenza A viruses that could not be subtyped. Specimens were sent to the Centers for Disease Control and Prevention for real-time reverse-transcriptase–polymerase-chain-reaction confirmatory testing for S-OIV.

Results- From April 15 through May 5, a total of 642 confirmed cases of S-OIV infection were identified in 41 states. The ages of patients ranged from 3 months to 81 years; 60% of patients were 18 years of age or younger. Of patients with available data, 18% had recently traveled to Mexico, and 16% were identified from school outbreaks of S-OIV infection.

The most common presenting symptoms were fever (94% of patients), cough (92%), and sore throat (66%); 25% of patients had diarrhea, and 25% had vomiting. Of the 399 patients for whom hospitalization status was known, 36 (9%) required hospitalization. Of 22 hospitalized patients with available data, 12 had characteristics that conferred an increased risk of severe seasonal influenza, 11 had pneumonia, 8 required admission to an intensive care unit, 4 had respiratory failure, and 2 died. The S-OIV was determined to have a unique genome composition that had not been identified previously.

Conclusions A novel swine-origin influenza A virus was identified as the cause of outbreaks of febrile respiratory infection ranging from self-limited to severe illness. It is likely that the number of confirmed cases underestimates the number of cases that have occurred.

Raja Ramachandran, Senior Resident Nephrology, PGIMER, Chandigarh,INDIA

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