Tamiflu, whose common scientific name is oseltamivir, is part of a family of flu fighting medicines called neuraminidase inhibitors. Tamilflu is used in the treatment of infections caused by both the influenza A and influenza B viruses. Tamiflu, which requires a prescription, can be used both to treat the flu if taken soon after symptoms appear, or to prevent the flu.

The difference between Tamiflu and a vaccine is that Tamiflu helps your immune system be in a position to fight off the advance of the viral infection, whereas a vaccine is just a straight injection of dead influenza that causes your immune system to produce antibodies to fight off the virus itself.

Tamiflu demand has skyrocketed over the past year for several reasons. There was a shortage of available flu vaccine during flu season 2005, with in some cases only enough for senior citizens or those with more vulnerable immune conditions being able to get vaccinated.

Also, the U.S. government was concerned that an outbreak of bird flu in the United States could leave the U.S. short on flu vaccines, causing them to hold back supplies just in case of an outbreak. However, the bird flu is different form human influenza.

Bird Flu is much harder to transmit than human influenza, requiring very close physical contact to spread the disease. Bird flu has been observed in countries where humans and animals are in close contact. There have been roughly 70 deaths worldwide and approximately 130 infections since 2005.

It is possible that bird flu will infect someone who is already carrying the human influenza strain, and that the two viruses will swap genetic material, causing the bird flu to spread like a deadlier version of human influenza. A highly virulent straight of bird flu could create a pandemic for the world, as did the Spanish Flu virus of the early 1900’s that killed 20 to 50 million people worldwide.

The bird flu is associated with the influenza A strain H5N1 flu virus. Although not the same as the Spanish flu virus, the current avian flu strain does share many similarities with the Spanish flu strain. Initial studies have shown that Tamiflu may be effective in helping to fight the effects of this flu virus if the medication is taken very early after flu symptoms appear. As a result, the demand for Tamiflu has skyrocketed.

A Swiss drug maker, F. Hoffman La-Roche Ltd., currently has a tight hold on the manufacturing of Tamiflu. Biolyse Pharma Corp., when turned down in its bid to try to enter the Tamiflu marketplace, had decided as of December of 2005 to attempt to mass produce several tons of shikimic acid, which is the main ingredient in Tamiflu, from the needles of discarded Christmas trees, as well as other pine, fir, and spruce trees. Such trees are the main source of shikimic acid.

Oseltamivir, sold under the brand name Tamiflu, is one of several medications approved by the U.S. Food and Drug Administration for the treatment and prevention of influenza. Flu shots are still the best way to prevent someone from developing the flu, but as of right now there is no known vaccine for the bird flu. The CDC has announced that development of a vaccine has begun.

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Tamiflu, whose common scientific name is oseltamivir, is part of a family of flu fighting medicines called neuraminidase inhibitors. Tamilflu is used in the treatment of infections caused by both the influenza A and influenza B viruses. Tamiflu, which requires a prescription, can be used both to treat the flu if taken soon after symptoms appear, or to prevent the flu.

The difference between Tamiflu and a vaccine is that Tamiflu helps your immune system be in a position to fight off the advance of the viral infection, whereas a vaccine is just a straight injection of dead influenza that causes your immune system to produce antibodies to fight off the virus itself.

Tamiflu demand has skyrocketed over the past year for several reasons. There was a shortage of available flu vaccine during flu season 2005, with in some cases only enough for senior citizens or those with more vulnerable immune conditions being able to get vaccinated.

Also, the U.S. government was concerned that an outbreak of bird flu in the United States could leave the U.S. short on flu vaccines, causing them to hold back supplies just in case of an outbreak. However, the bird flu is different form human influenza.

Bird Flu is much harder to transmit than human influenza, requiring very close physical contact to spread the disease. Bird flu has been observed in countries where humans and animals are in close contact. There have been roughly 70 deaths worldwide and approximately 130 infections since 2005.

It is possible that bird flu will infect someone who is already carrying the human influenza strain, and that the two viruses will swap genetic material, causing the bird flu to spread like a deadlier version of human influenza. A highly virulent straight of bird flu could create a pandemic for the world, as did the Spanish Flu virus of the early 1900’s that killed 20 to 50 million people worldwide.

The bird flu is associated with the influenza A strain H5N1 flu virus. Although not the same as the Spanish flu virus, the current avian flu strain does share many similarities with the Spanish flu strain. Initial studies have shown that Tamiflu may be effective in helping to fight the effects of this flu virus if the medication is taken very early after flu symptoms appear. As a result, the demand for Tamiflu has skyrocketed.

A Swiss drug maker, F. Hoffman La-Roche Ltd., currently has a tight hold on the manufacturing of Tamiflu. Biolyse Pharma Corp., when turned down in its bid to try to enter the Tamiflu marketplace, had decided as of December of 2005 to attempt to mass produce several tons of shikimic acid, which is the main ingredient in Tamiflu, from the needles of discarded Christmas trees, as well as other pine, fir, and spruce trees. Such trees are the main source of shikimic acid.

Oseltamivir, sold under the brand name Tamiflu, is one of several medications approved by the U.S. Food and Drug Administration for the treatment and prevention of influenza. Flu shots are still the best way to prevent someone from developing the flu, but as of right now there is no known vaccine for the bird flu. The CDC has announced that development of a vaccine has begun.

http://www.google.com

Tamiflu, whose common scientific name is oseltamivir, is part of a family of flu fighting medicines called neuraminidase inhibitors. Tamilflu is used in the treatment of infections caused by both the influenza A and influenza B viruses. Tamiflu, which requires a prescription, can be used both to treat the flu if taken soon after symptoms appear, or to prevent the flu.

The difference between Tamiflu and a vaccine is that Tamiflu helps your immune system be in a position to fight off the advance of the viral infection, whereas a vaccine is just a straight injection of dead influenza that causes your immune system to produce antibodies to fight off the virus itself.

Tamiflu demand has skyrocketed over the past year for several reasons. There was a shortage of available flu vaccine during flu season 2005, with in some cases only enough for senior citizens or those with more vulnerable immune conditions being able to get vaccinated.

Also, the U.S. government was concerned that an outbreak of bird flu in the United States could leave the U.S. short on flu vaccines, causing them to hold back supplies just in case of an outbreak. However, the bird flu is different form human influenza.

Bird Flu is much harder to transmit than human influenza, requiring very close physical contact to spread the disease. Bird flu has been observed in countries where humans and animals are in close contact. There have been roughly 70 deaths worldwide and approximately 130 infections since 2005.

It is possible that bird flu will infect someone who is already carrying the human influenza strain, and that the two viruses will swap genetic material, causing the bird flu to spread like a deadlier version of human influenza. A highly virulent straight of bird flu could create a pandemic for the world, as did the Spanish Flu virus of the early 1900’s that killed 20 to 50 million people worldwide.

The bird flu is associated with the influenza A strain H5N1 flu virus. Although not the same as the Spanish flu virus, the current avian flu strain does share many similarities with the Spanish flu strain. Initial studies have shown that Tamiflu may be effective in helping to fight the effects of this flu virus if the medication is taken very early after flu symptoms appear. As a result, the demand for Tamiflu has skyrocketed.

A Swiss drug maker, F. Hoffman La-Roche Ltd., currently has a tight hold on the manufacturing of Tamiflu. Biolyse Pharma Corp., when turned down in its bid to try to enter the Tamiflu marketplace, had decided as of December of 2005 to attempt to mass produce several tons of shikimic acid, which is the main ingredient in Tamiflu, from the needles of discarded Christmas trees, as well as other pine, fir, and spruce trees. Such trees are the main source of shikimic acid.

Oseltamivir, sold under the brand name Tamiflu, is one of several medications approved by the U.S. Food and Drug Administration for the treatment and prevention of influenza. Flu shots are still the best way to prevent someone from developing the flu, but as of right now there is no known vaccine for the bird flu. The CDC has announced that development of a vaccine has begun.

http://www.google.com

Many health experts worldwide believe that the H5N1 strains of bird flu could mutate into a further form, one which can easily infect and pass from human to human resulting in a pandemic unparallel by anything seen historically.

One bird flu expert in China, Zhong Nanshan, said, “When avian flu is around and human flu appears, this will raise the chances of avian flu turning into a human flu. We have to be very alert and careful in March.”

He further said, “People who were killed by bird flu last year and this year were too poor to seek treatment. If you happen to have high fever and pneumonia, you must seek treatment fast.” He is the director of the Guangzhou Institute of Respiratory Diseases in the southern province of China named as Guangdong, which has its base close to what can only be described as ground zero for the bird flu strain of the virus.

The H5NI strain of the influenza virus, commonly referred to as Avian flu or bird flu, has claimed three human lives in China so far this year. The death of these people has been linked directly to the viral infection by leading experts and would have been contracted either from close contact or by ingesting infected birds. The World Health Organization ruled out any human transmission of infection among these cases. Its spokesman said, “Mutations occur in influenza viruses. Separately from that, the (bird flu) virus continues to be deadly. But there is no new jump in deadliness.”

However, there were some contrasting views from China, where Zhong said, “The bird flu virus has shown signs of mutation. If infected people don’t get treatment in a timely manner, they can die easily.”

Impact of bird flu in the Hong Kong

Hong Kong lies in the south of China and is at the peak of a seasonal flu infection. The flu infection broke out among children in many schools. The authorities reported the death of a 3 year old girl due to human H3N2 flu. They have ordered the schools to conduct fever check ups among children.

One 7 year old boy was also reported to have died. It forced the government to shut the school ahead of the Easter holidays. The causes of death are being probed but the authorities said that boy was admitted to hospital with flu symptoms.

Ever since its first outbreak in 2003, H5N1 virus has infected 372 people worldwide out of which 235 has died.

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Avian flu is caused due to the H5N1 virus which is transmitted from the saliva, fecal matter of the birds. The disease is highly contagious and causes death of birds and poultry population. The virus is lethal and assumes the proportion of pandemic, which can wipe out the entire population of birds and poultry. The virus also spreads to the human beings if they are in contact with the sick bird or poultry. Human beings are also afflicted by the virus which can even be life threatening.

Avian influenza is flu infection in birds. The disease is of concern to humans, who have no immunity against it. The virus that causes this infection in birds can mutate (change) to easily infect humans. Such mutation can start a deadly worldwide epidemic.

Avian’ refers to birds and ‘flu’ is the common name for influenza. Some countries (particularly in Asia) have been affected by bird flu infecting their poultry stocks, and a small number of people have caught the bird flu virus from being in close contact with infected chickens. There have only been a small number of incidents of bird flu in the UK where it has been found in poultry and a couple of wild birds. All cases of bird flu in the UK have been well controlled and there have been no cases of human illness associated with any incidents.

Avian influenza (also referred to as avian flu or bird flu) refers to type A strains of the influenza virus that infect birds. Avian flu occurs worldwide and was first identified over 100 years ago. Normally avian flu viruses don’t infect species other than birds and pigs. In 1997, however, the first documented human case of avian flu occurred in Hong Kong. Avian flu causes severe symptoms and can result in death.

Influenza is contagious. Viruses that cause influenza spread from person to person mainly by airborne droplets of respiratory fluids that are sent through the air when someone infected with the virus coughs or sneezes. Other people inhale the airborne virus and can become infected. In some cases, the flu can be spread when someone touches a surface (e.g., doorknobs, countertops, telephones) that has the virus on it and then touches his or her nose, mouth or eyes. The flu is most easily spread in crowded places such as schools and offices.

Transmission of the virus from birds to humans occurs when birds such as turkeys, geese, and domestic chickens come in contact with the virus from food, water, or particles contaminated with the virus. The virus can be shed in the droppings of migratory birds since they are natural carriers and is able to survive for three months in cool temperatures. It can also survive in water at 0°C for more than 30 days and at 22°C for up to 4 days. If a person working closely with these animals inhales dust particles containing the virus or by other means, they could develop the bird flu.

For now, the primary treatment option remains the flu drug oseltamivir (Tamiflu), which works by preventing the virus from multiplying. It’s not clear how effective Tamiflu will prove against H5N1. Another antiviral flu drug, zanamivir (Relenza), may be an alternative. However, viruses may become resistant to both of these drugs.

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