What is Swine Influenza?
Swine Influenza (swine flu) is a respiratory disease of pigs caused by type an influenza virus that regularly causes outbreaks of influenza in pigs. Swine flu viruses cause
high levels of illness and low death rates in pigs. Swine influenza viruses may circulate among swine throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans. The classical swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930.
How many swine flu viruses are there?
Like all influenza viruses, swine flu viruses change constantly. Pigs can be infected by avian influenza and human influenza viruses as well as swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassert (i.e. swap genes) and new viruses that are a mix of swine, human and/or avian influenza viruses can emerge. Over the years, different variations of swine flu viruses have emerged. At this time, there are four main influenza types a virus subtypes that have been isolated in pigs: H1N1, H1N2, H3N2, and H3N1. However, most of the recently isolated influenza viruses from pigs have been H1N1 viruses.
Swine Flu in Humans
Can humans catch swine flu?
Swine flu viruses do not normally infect humans. However, sporadic human infections with swine flu have occurred. Most commonly, these cases occur in persons with direct exposure to pigs (e.g. children near pigs at a fair or workers in the swine industry). In addition, there have been documented cases of one person spreading swine flu to others. For example, an outbreak of apparent swine flu infection in pigs in Wisconsin in 1988 resulted in multiple human infections, and, although no community outbreak resulted, there was antibody evidence of virus transmission from the patient to health care workers who had close contact with the patient.
How common is swine flu infection in humans?
In the past, CDC received reports of approximately one human swine influenza virus infection every one to two years in the U.S., but from December 2005 through February 2009, 12 cases of human infection with swine influenza have been reported.
What are the symptoms of swine flu in humans?
The symptoms of swine flu in people are expected to be similar to the symptoms of regular human seasonal influenza
and include fever, lethargy, lack of appetite and coughing. Some people with swine flu also have reported runny nose, sore throat, nausea, vomiting and diarrhea.
Can people catch swine flu from eating pork?
No. Swine influenza viruses are not transmitted by food. You can not get swine influenza from eating pork or pork products. Eating properly handled and cooked pork and pork products are safe. Cooking pork to an internal temperature of 160°F kills the swine flu virus as it does other bacteria and viruses.
How does swine flu spread?
Influenza viruses can be directly transmitted from pigs to people and from people to pigs. Human infection with flu viruses from pigs are most likely to occur when people are in close proximity to infected pigs, such as in pig barns and livestock exhibits housing pigs at fairs. Human-to-human transmission of swine flu can also occur. This is thought to occur in the same way as seasonal flu occurs in people, which is mainly person-to-person transmission through coughing or sneezing of people infected with the influenza virus. People may become infected by touching something with flu viruses on it and then touching their mouth or nose.
What do we know about human-to-human spread of swine flu?
In September 1988, a previously healthy 32-year-old pregnant woman was hospitalized for pneumonia and died 8 days later. A swine H1N1 flu virus was detected. Four days before getting sick, the patient visited a county fair swine exhibition where there was widespread influenza-like illness among the swine. In follow-up studies, 76% of swine exhibitors tested had antibody evidence of swine flu infection but no serious illnesses were detected among this group. Additional studies suggest that one to three health care personnel who had contact with the patient developed mild influenza-like illnesses with antibody evidence of swine flu infection.
How can human infections with swine influenza be diagnosed?
To diagnose swine influenza A infection, a 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. Identification as a swine flu influenza A virus requires sending the specimen to CDC for laboratory testing.
What medications are available to treat swine flu infections in humans?
There are four different antiviral drugs that are licensed for use in the US for the treatment of influenza: amantadine, rimantadine, oseltamivir and zanamivir. While most swine influenza viruses have been susceptible to all four drugs, the most recent swine influenza viruses isolated from humans are resistant to amantadine and rimantadine. At this time, CDC recommends the use of oseltamivir or zanamivir for the treatment and/or prevention of infection with swine influenza viruses.
What other examples of swine flu outbreaks are there?
Probably the most well known is an outbreak of swine flu among soldiers in Fort Dix, New Jersey in 1976. The virus caused disease with x-ray evidence of pneumonia in at least 4 soldiers and 1 death; all of these patients had previously been healthy. The virus was transmitted to close contacts in a basic training environment, with limited transmission outside the basic training group. The virus is thought to have circulated for a month and disappeared. The source of the virus, the exact time of its introduction into Fort Dix, and factors limiting its spread and duration are unknown. The Fort Dix outbreak may have been caused by introduction of an animal virus into a stressed human population in close contact in crowded facilities during the winter. The swine influenza A virus collected from a Fort Dix soldier was named A/Ne
Is the H1N1 swine flu virus the same as human H1N1 viruses?
No. The H1N1 swine flu viruses are antigenically very different from human H1N1 viruses and, therefore, vaccines for human seasonal flu would not provide protection from H1N1 swine flu viruses.
Swine Flu in Pigs
How does swine flu spread among pigs?
Swine flu viruses are thought to be spread mostly through close contact among pigs and possibly from contaminated objects moving between infected and uninfected pigs. Herds with continuous swine flu infections and herds that are vaccinated against swine flu may have sporadic disease, or may show only mild or no symptoms of infection.
What are signs of swine flu in pigs?
Signs of swine flu in pigs can include sudden onset of fever, depression, coughing (barking), discharge from the nose or eyes, sneezing, breathing difficulties, eye redness or inflammation, and going off feed.
How common is swine flu among pigs?
H1N1 and H3N2 swine flu viruses are endemic among pig populations in the United States and something that the industry deals with routinely. Outbreaks among pigs normally occur in colder weather months (late fall and winter) and sometimes with the introduction of new pigs into susceptible herds. Studies have shown that the swine flu H1N1 is common throughout pig populations worldwide, with 25 percent of animals showing antibody evidence of infection. In the U.S. studies have shown that 30 percent of the pig population has antibody evidence of having had H1N1 infection. More specifically, 51 percent of pigs in the north-central U.S. have been shown to have antibody evidence of infection with swine H1N1. Human infections with swine flu H1N1 viruses are rare. There is currently no way to differentiate antibody produced in response to flu vaccination in pigs from antibody made in response to pig infections with swine H1N1 influenza. While H1N1 swine viruses have been known to circulate among pig populations since at least 1930, H3N2 influenza viruses did not begin circulating among US pigs until 1998. The H3N2 viruses initially were introduced into the pig population from humans. The current swine flu H3N2 viruses are closely related to human H3N2 viruses.
Is there a vaccine for swine flu?
Vaccines are available to be given to pigs to prevent swine influenza. There is no vaccine to protect humans from swine flu. The seasonal influenza vaccine will likely help provide partial protection against swine H3N2, but not swine H1N1 viruses.
Concern that the world could be on the brink of the first influenza pandemic in more than 40 years escalated Sunday as France, New Zealand, Hong Kong and Spain reported potential new cases in which people had been infected with swine flu. Canada confirmed several new cases. America has reported at least 20 cases. There is concern. Better news . . . there are things that can be done you know the name Pasteur, as it pasteurization. The name you should know is Antoine Be champ. Louis Pasteur believed that all pathogens including viruses come from the outside/external environment. Unfortunately, he was not correct, though standard medicine has based their entire treatment modalities on this notion. Be champ believed that all disease originates from the internal milieu; that is, all problems start from the inside. Thus if a person takes care of his or her system by doing the basics eating right, exercising, living with passion etc., all will be right with the world. Or at least with the individual’s world. (It was reported that on his deathbed,
Pasteur admitted that he was wrong and be champ was correct. Unfortunately, Fox News was not there to cover this.) Which brings us to the swine flu? What is it? It is much the same as human flu but in pigs. The worry is that pigs are excellent hosts for the virus. And because they are genetically close to humans, they can pass the virus to us more easily than say, birds can. The great fear over the past decade has been that the avian flu virus, H5N1, would infect pigs which would act as a reservoir for its transmission to humans. Will this happen? My crystal ball is in the repair shop today. However, I am certain that there are a number of things that can be done and a number of things to be avoided. Allow me to start with the latter.
* In my opinion, those who receive ―flu shots‖ have done themselves a huge disservice. Unless you are 70 and prone to illnesses easily, getting the flu shot weakens the immune system. When the body comes in contact with a pathogen, there are a number of progressively stronger levels that the pathogen must go through. If it is successful in passing these layers, a person gets sick. However, with the flu vaccination, the pathogen is directly injected into the deepest layer (called the blood layer). Over time, the immune systems weaken.
* Overconsumption of alcohol and sugars. Yes, these are the obvious ones but please be sure you are actually doing them versus talking about doing them. * Stress does terrible things to the blood. I had the opportunity to view it first hand in Canada several years ago. A brilliant microbiologist named Gaston Naessens created a microscope akin but much stronger than a Dark Field microscope. While viewing the blood, one can see the stages Both healthy and unhealthy and the negative effects stress has on the system. * Boredom. The most underrated cause of sickness is boredom. Live life without excitement, without colors or passion and you are virtually guaranteed a free ticket to major illness, injury and/or disease. * Lack of exercise. THE major system in the body as it relates to immunity is the lymphatic system. This system depends upon the
Musculoskeletal system as its ―pump.‖ when the lymph gets congested due to lack of movement, illness is either present will be soon being present.
PLEASE NOTE: Casual walking, golfing, gardening or other ―non
Activities which do not elevate the heart rate are NOT considered exercise. Do them if they bring you joy but be sure to exercise as well. Minimum of 5 days per week. TO DO * One of the simplest way is to read the AVOID LIST and do the opposite. * Be sure you are providing nutrition for the heart as in natural medicine; the heart is approximately 50% of the immune system. * Be sure you are providing nutrition for the hormonal system. HGH, melatonin and the sex hormones are the major players here. There is targeted nutrition for each. * Unless diabetic, Royal Jelly is a must for all. * Add Astragalus to your protocol too. Both are top notch immune strengtheners. Take note to all of these and more importantly, be sure to apply them. Pro-action is always better than no action.
Last Updated ( Saturday, 12 June 2010 19:43 )