swine flu
In Dire Need of Swine Flu Vaccine
According to the World Health Organization, efforts for developing a swine flu vaccine has been ongoing since the first human case of the virus has been confirmed. Estimates place the initial doses of the vaccine will be administered in 5 to 6 months time.
While people diagnosed with H1N1 virus seems to be headed for recovery, there have been deaths recorded. Aside from that, receiving vaccines for this virus is important particularly the elderly and individuals with a weak immune system, since they are prone to complications such as pneumonia.
Likewise, the vaccine will serve as protection in case the condition persists particularly during the winter months which is the time when influenza is at its peak.
According to the World Health Organization (WHO), although they are still incomplete, current evidence shows that seasonal influenza vaccines will provide minimal or no protection against swine flu. Every year, a new batch of flu vaccine is developed and matched with strains that the WHO determines will most probably circulate in the winter months, which happens to be the peak season for influenza outbreaks.
Influenza virus comes in various strains which contains different proteins on their surfaces. The body’s immune system can only fight and destroy a virus if they are able to recognize these proteins. It is worth noting that antibodies that recognize one strain may not detect other strains.
Existing vaccines may only offer some protection against swine influenza if the proteins on its surface are identical to strains used to develop previous vaccines. According to the NIBSC, they are trying to determine if the swine flu virus, which is an H1N1 strain of type A influenza, as well as previous H1N1 vaccines match current vaccines.
The preparation of a vaccine commences after a virus develops as they provide the starting point for the production of the vaccine. As such, there is always a time delay while a vaccine is being developed. Preparation of a vaccine involves several steps so it would take several months before a vaccine becomes available.
According to WHO estimates, the virus needed for producing the vaccine will be accessible to vaccine manufacturers by the middle of May while the initial dose for a new vaccine would be ready within 5 to 6 months after that. Waiting time would be much longer if the growth of the vaccine proceeds rapidly.
Vaccination plays a crucial role in the prevention and reduction of the effects of serious conditions. Unfortunately, they are not entirely effective and could lose its effectiveness if the virus mutates.
Existing flu vaccines are valid for about one year and are 70% - 80% effective against transmission with strains of influenza virus that are identical to strains used in the production of vaccines.
The WHO believes that it is too early to tell how the A(H1N1) virus would change. It is closely monitoring any changes in the virus and this would help countries quickly react to any important changes that the virus may show.
Vaccines help the body combat certain diseases in case an individual becomes afflicted with the illness in the future. On the other hand, an antiviral drug is used on people who is already infected with a virus. Although they work in various ways, they generally work to prevent the virus from spreading to different cells in the body.
Swine flu vaccines are administered prior to exposure to a virus so they would be protected from that agent. Antivirals only work if administered within a certain period of time before or after they are exposed to the virus.
Tags: swine flu vaccine, swine flu, who, h1n1
Signs And Symptoms Of Swine Flu
Most of the human race is now aware of the news outbreak about Swine Flu — but are we aware of the signs and symptoms of swine flu? We already know how to prevent but the signs and symptoms is still a puzzle in our mind. Well, through this article, I will give you insights if you are now a victim of Swine Flu virus.
But before, we proceed let me introduce to you first about Swine Flu. The 3-10% of the global population estimated to affect the yearly influenza epidemics that can be a result in severe illness in 3–4 million patients and causing 200,000–400,000 deaths worldwide. Severe illness and deaths occur mainly in the high-risk populations of infants, the elderly, pregnant women and chronically ill patients in industrialized nations.
In addition to these yearly epidemics, the influenza A virus has caused three major global pandemics during the 20th century: there was the Spanish flu in 1918, the Asian flu in 1957 and in 1968–69 was the Hong Kong flu. These pandemics were caused by an Influenza A virus that had undergone major genetic changes, due to which the population did not possess significant immunity.
In pigs influenza infection produces lethargy, sneezing, fever, coughing, difficulty breathing and decreased appetite. In some cases especially the pregnant women, the infection can cause abortion. Although mortality is usually low (around 1-3%), the virus can produce weight loss and poor growth, causing economic loss to farmers. Infected pigs can lose up to 10 pounds of body weight over a 2 to 3 week period.
Main symptoms of swine flu in humans can be a direct transmission of a swine flu virus from pigs to humans is occasionally possible (called zoonotic swine flu). Under phase one, an animal outbreak of flu symptoms in your hog race backyard.
In phase two considered when the owner within the hog race backyard got infected with a flu from their animal symptoms.
Phase 3 reviewed when a child within the hog race backyard got infected together with his father, his mother and his siblings. The fourth phase, there is a cause of community-level outbreaks of human-to-human transmission of an animal or human-animal flu virus. This phase will focus to contain the spreading of the virus.
Countries will be informed asking to advice their people such as traveling to containment areas. All countries with infected with the swine flu must also consider in deploying a pandemic vaccine. (e.g. when the infected family member went out from their backyard decided to talk to his friends and unaware that he’s spreading the virus.)
Second to the last phase, when a man-infected virus either a family member or any of his friends travel to another neighboring country. You will know if there your country is in a phase 5 dominant when there is an announcement suspension of classes because of flu spread out.
This final and a pandemic phase is just like when an unaware man-infected virus travel to another continent unaware that he spread out the Swine Flu virus to another races. Now with the above mentioned signs and symptoms, you are now ready to plan and prepare immediately of the possible attacks of the Swine Flu virus. Consult to different agencies that concerns with the Swine Flu pandemics.
Tags: signs and symptoms of swine flu, symptoms of swine flu, swine flu virus, zoonotic swine flu
