Showing posts with label Listeriosis. Show all posts
Showing posts with label Listeriosis. Show all posts

Tuesday, May 19, 2009

New hope for development of H1N1 vaccine


updated 4 hours, 28 minutes ago

Researchers around the world are racing to come up with a vaccine for the widespread H1N1 virus.

SEOUL, Korea (CNN) -- Researchers at a South Korean university say they have discovered a candidate strain for an H1N1 vaccine, though it has not yet been approved by health authorities in the United States or the World Health Organization.

The strain is a genetically modified version of a live virus, and could lead to a vaccine against H1N1 -- commonly known as swine flu, said Seo Sang-heui, a professor at Chungnam National University's College of Veterinary Medicine in South Korea.

"We created a candidate strain," Seo told CNN on Wednesday. The strain would still have to undergo additional testing and tweaking, but Seo believes it could be the right one to develop a vaccine.

He said the university is sending eight vials of the strain to the U.S. Centers for Disease Control and Prevention. Seo added that the CDC had sent the university an original strain of the virus for testing.

CDC spokesman Dave Daigle told CNN said the agency has sent H1N1 strains to roughly 10 labs around the world, but he had no information on South Korea's claims. He said the CDC would check out the university's research.

Researchers around the world are racing to come up with a vaccine for the widespread virus, but the CDC and the WHO have said it could take up to six months between the time a virus appears to the time the vaccine is available to the public.

Earlier this month, WHO officials said candidate vaccine strains would undergo quality-control measures and be evaluated in clinical trials. If it meets certain criteria, a candidate vaccine would still have to be approved by the federal Food and Drug Administration before being available to patients in the United States.

From ChannelNewsAsia.com; see the source article here.


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How about a holistic approach to protection and cure?

Sunday, May 10, 2009

US swine flu victims had chronic health problems

Español: Sintomatología de la gripe porcina. (...
Español: Sintomatología de la gripe porcina. (Véase Gripe porcina). Model: Mikael Häggström. To discuss image, please see Template talk:Häggström diagrams References Centers for Disease Control and Prevention > Key Facts about Swine Influenza (Swine Flu) Retrieved on April 27, 2009 (Photo credit: Wikipedia)
By MIKE STOBBE,AP Medical Writer AP - Friday, May 8

ATLANTA - America's two swine flu deaths _ a toddler and a pregnant woman _ each suffered from several other illnesses when they were infected with the virus, according to a study released Thursday.

The report by the Centers for Disease Control and Prevention presented a clearer picture of the complicated medical situations faced by those who have gotten swine flu and had the most serious cases so far.

The Mexican toddler had a chronic muscle weakness called myasthenia gravis, a heart defect, a swallowing problem and lack of oxygen. Little Miguel Tejada Vazquez fell ill and died during a family visit to Texas.

The pregnant woman, Judy Trunnell, 33, was hospitalized for two weeks until she died Tuesday. The teacher was in a coma, and her baby girl was delivered by cesarean section. According to the report, she had asthma, rheumatoid arthritis, a skin condition called psoriasis and was 35 weeks pregnant.

People with chronic illnesses are at greatest risk for severe illness from the flu, along with the elderly and young children. So far, most of those with the swine flu in the U.S. and Mexico have been young adults.

"We're still learning about what patients are most at risk" from the new virus, said Dr. Fatima Dawood, a CDC epidemiologist.

The CDC report released by the New England Journal of Medicine also provided more detailed information on 22 people hospitalized with swine flu. Nine had chronic medical conditions, including the two who died and a 25-year-old man with Down syndrome and a congenital heart disease. Five of the patients had asthma alone.

Separately, the CDC also described the symptoms experienced by Americans with swine flu. About 90 percent reported fever, 84 percent reported cough and 61 percent reported a sore throat _ all similar to what's seen with seasonal flu.
But about one in four cases have also involved either vomiting or diarrhea, which is not typical for the normal flu bug.

It's possible the virus is spreading not only through coughed and sneezed droplets _ as with seasonal flu _ but also through feces-contaminated hands, said Dawood.

"This is a new virus and we're still learning how transmission occurs," she said.
There are now nearly 900 confirmed cases in the United States, said the CDC's acting chief, Dr. Richard Besser. That count included 42 hospitalizations as of Thursday.

About 10 percent of the Americans who got swine flu had traveled to Mexico and likely picked up the infection there. That's a change from over the weekend when the CDC said about a third of the U.S. cases at that point were people who had been to Mexico, where the outbreak began.

The ongoing spread within the U.S. borders explains why a shrinking proportion of cases are people who traveled to Mexico, Besser said.

The ages of those in the U.S. who got swine flu now range from 1 month to 87. More than half are under 18.

In the new report, CDC scientists discussed what's known about the swine flu virus. It has a unique combination of genes from flu viruses seen in birds, humans and pigs from not only North America but also Europe and Asia.

"There are no really close relatives, nothing we can say was an immediate precursor," said Michael Shaw, a CDC microbiologist.

It's still not clear how the combination occurred. Pigs from the Americas are imported into Europe and Asia for breeding purposes, but not the other way around, CDC officials said. Yet the virus first surfaced in California and Mexico.

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On the Net:
CDC swine flu web site: http://www.cdc.gov/h1n1flu/

From Yahoo! News; source article is here.