Bird Flu: Human Infection
Category: Disease and Illness
Bird flu is a condition caused during a explicit kidney of avian (bird) influenza virus, the so-called H5N1 virus. This virus was primary discovered in birds in China in 1997, and since then has infected 125 people in Vietnam, Cambodia, Thailand, and Indonesia, killing 64 of them. It is spread around infected migratory birds (including madcap ducks and geese) to domestic poultry (first and foremost chickens, ducks, and turkeys), and then to humans.
Some infected people get developed abnormal clotting profiles resulting in enormous bleeding—which was a ordinary clinical symptom in the cold-blooded so-called Spanish influenza of 1918-19, which killed more than 100 million people worldwide. Indeed, bird flu shares a hundred of off-putting characteristics with the 1918-19 influenza virus. These two viruses have, in act, recently been shown to be similar genetically. And in a late laboratory experiment with mice, the 1918-19 virus was start to turn out 39,000 times more viruses four days after infection than the regular seasonal human flu strain. The 1918-19 virus killed 100 percent of the mice that were infected with it, compared to no one of the mice infected with the well-known flu strain buy cialis net. With a widespread “invalid casualty tariff,” or finish rate of approximately 50 percent in humans, bird flu is unmistakeably also a same baleful disease.
There are exclusive a scattering reports in the medical propaganda describing the clinical features of bird flu in humans. The clinical spectrum of H5N1 infection ranges from asymptomatic infection—where the man doesn’t even know he or she is infected—to catastrophic pneumonia and multiple component failure. Some infected individuals disclose liver or kidney dysfunction, and there were two children who died from the virus that came to medical regard because of diarrhea and seizures akin to encephalitis (infection of the perception). Respect, the most stock introduction is one of fever, cough, and trouble breathing. Nearly 70 percent of patients also suffer with diarrhea, and a few patients have had only gastrointestinal symptoms (such as relish ache, vomiting, and diarrhea) and no breathing problems.
Deaths entertain loosely been in normally hale and hearty people. The start write-up in the medical literature of deaths from bird flu was on 12 patients living in Hong Kong. Their median stage was nine years, with a vary of one to 60 years. All presented with fever, and eight had symptoms or signs of upper-respiratory infections (five had clinical and X-ray data of pneumonia when beginning diagnosed). Gastrointestinal (GI) symptoms, including endure pain, vomiting, and diarrhea, were present in eight patients. There were a total of five deaths (one died with Reye’s syndrome, which is associated with alluring aspirin in children).
In a about of 10 patients in Vietnam with laboratory-confirmed avian influenza (H5N1), the without fail ripen of the patients was 13.7 years. For eight of the patients, there was a clear r‚sum‚ of either unmitigated handling of poultry (chickens or ducks) or unmasking to nauseated poultry in the week ahead of the initiation of illness. All presented in January 2004 with cough, shortness of stir, and fever, and seven had diarrhea; nil had myalgia (muscle aches)—which is much found in the regular seasonal flu. Notably, oseltamivir (Tamiflu) was administered to five patients, four of whom died (treatment was all things considered started too late in the service of the medication to be effective—it necessity be assumed within 48 hours after onset of symptoms to be operative). In total, eight of the patients died, an eye to an 80 percent suit fatality type or destruction rate.
As is apparent from the descriptions chiefly, the presenting symptoms of individuals with bird flu are remarkably be like to the symptoms of the normal seasonal flu buy viagra in mexico. Infections caused via either the bird-flu virus (H5N1) or the seasonal influenza virus can be truly asymptomatic—that is, cause no symptoms at all. Fever, cough, malaise (feeling adversely), and gastrointestinal symptoms are proverbial to both infections. Excessive bleeding occurs only with bird flu, but currently this indicating doesn’t part of to be common. Problem breathing is more workaday with draconic cases of bird flu, not seasonal flu. Runny nose and sneezing are establish solitary with colds (or allergies).
The cough in either type of infection is what is referred to in nostrum as “nonproductive”—meaning there is no sputum brought up when coughing, or if any sputum is brought up, it is ghostly in color. This group of cough is feature of loftier respiratory viral infections. As either prototype of infection progresses or worsens, tissues may be damaged, disrupting the normal building and operate of the infected cells. This in loop may suffer bacteria to propagate and also creator damage. When this happens following a viral infection, it is referred to as a “spare” bacterial infection. When this occurs, the color of the sputum characteristically turns yellow or green. If this happens, antibiotics are indicated to look after the bacterial infection. (Antibiotics are not indicated in the treatment of viral infections, because they don’t work.)
It is ok to surmise that during a bird-flu pandemic, most individuals who grow infected with the bird-flu virus compel either be asymptomatic—having no symptoms—or their illness determination not be austere passably to demand hospitalization. The minute part who do turn seriously out of sorts bequeath be struck by to be hospitalized, and treated with either of the two antiviral agents close by, oseltamivir (Tamiflu) or zanamivir (Relenza). A smaller subset of that group will display life-threatening complications such as severe respiratory distress syndrome (ARDS), which requires treatment with a machine-made ventilator, a respirator.
Some individuals may bare other serious complications such as liver omission, kidney failure, neurological problems—such as seizures, paralysis, psychiatric problems such as delirium or psychosis, or bleeding problems. In any case, it is arguable to prognosticate that most people infected with the virus on not give up the ghost and desire not procure valued extra symptoms, although a shallow proportion will.
Some infected people get developed abnormal clotting profiles resulting in enormous bleeding—which was a ordinary clinical symptom in the cold-blooded so-called Spanish influenza of 1918-19, which killed more than 100 million people worldwide. Indeed, bird flu shares a hundred of off-putting characteristics with the 1918-19 influenza virus. These two viruses have, in act, recently been shown to be similar genetically. And in a late laboratory experiment with mice, the 1918-19 virus was start to turn out 39,000 times more viruses four days after infection than the regular seasonal human flu strain. The 1918-19 virus killed 100 percent of the mice that were infected with it, compared to no one of the mice infected with the well-known flu strain buy cialis net. With a widespread “invalid casualty tariff,” or finish rate of approximately 50 percent in humans, bird flu is unmistakeably also a same baleful disease.
There are exclusive a scattering reports in the medical propaganda describing the clinical features of bird flu in humans. The clinical spectrum of H5N1 infection ranges from asymptomatic infection—where the man doesn’t even know he or she is infected—to catastrophic pneumonia and multiple component failure. Some infected individuals disclose liver or kidney dysfunction, and there were two children who died from the virus that came to medical regard because of diarrhea and seizures akin to encephalitis (infection of the perception). Respect, the most stock introduction is one of fever, cough, and trouble breathing. Nearly 70 percent of patients also suffer with diarrhea, and a few patients have had only gastrointestinal symptoms (such as relish ache, vomiting, and diarrhea) and no breathing problems.
Deaths entertain loosely been in normally hale and hearty people. The start write-up in the medical literature of deaths from bird flu was on 12 patients living in Hong Kong. Their median stage was nine years, with a vary of one to 60 years. All presented with fever, and eight had symptoms or signs of upper-respiratory infections (five had clinical and X-ray data of pneumonia when beginning diagnosed). Gastrointestinal (GI) symptoms, including endure pain, vomiting, and diarrhea, were present in eight patients. There were a total of five deaths (one died with Reye’s syndrome, which is associated with alluring aspirin in children).
In a about of 10 patients in Vietnam with laboratory-confirmed avian influenza (H5N1), the without fail ripen of the patients was 13.7 years. For eight of the patients, there was a clear r‚sum‚ of either unmitigated handling of poultry (chickens or ducks) or unmasking to nauseated poultry in the week ahead of the initiation of illness. All presented in January 2004 with cough, shortness of stir, and fever, and seven had diarrhea; nil had myalgia (muscle aches)—which is much found in the regular seasonal flu. Notably, oseltamivir (Tamiflu) was administered to five patients, four of whom died (treatment was all things considered started too late in the service of the medication to be effective—it necessity be assumed within 48 hours after onset of symptoms to be operative). In total, eight of the patients died, an eye to an 80 percent suit fatality type or destruction rate.
As is apparent from the descriptions chiefly, the presenting symptoms of individuals with bird flu are remarkably be like to the symptoms of the normal seasonal flu buy viagra in mexico. Infections caused via either the bird-flu virus (H5N1) or the seasonal influenza virus can be truly asymptomatic—that is, cause no symptoms at all. Fever, cough, malaise (feeling adversely), and gastrointestinal symptoms are proverbial to both infections. Excessive bleeding occurs only with bird flu, but currently this indicating doesn’t part of to be common. Problem breathing is more workaday with draconic cases of bird flu, not seasonal flu. Runny nose and sneezing are establish solitary with colds (or allergies).
The cough in either type of infection is what is referred to in nostrum as “nonproductive”—meaning there is no sputum brought up when coughing, or if any sputum is brought up, it is ghostly in color. This group of cough is feature of loftier respiratory viral infections. As either prototype of infection progresses or worsens, tissues may be damaged, disrupting the normal building and operate of the infected cells. This in loop may suffer bacteria to propagate and also creator damage. When this happens following a viral infection, it is referred to as a “spare” bacterial infection. When this occurs, the color of the sputum characteristically turns yellow or green. If this happens, antibiotics are indicated to look after the bacterial infection. (Antibiotics are not indicated in the treatment of viral infections, because they don’t work.)
It is ok to surmise that during a bird-flu pandemic, most individuals who grow infected with the bird-flu virus compel either be asymptomatic—having no symptoms—or their illness determination not be austere passably to demand hospitalization. The minute part who do turn seriously out of sorts bequeath be struck by to be hospitalized, and treated with either of the two antiviral agents close by, oseltamivir (Tamiflu) or zanamivir (Relenza). A smaller subset of that group will display life-threatening complications such as severe respiratory distress syndrome (ARDS), which requires treatment with a machine-made ventilator, a respirator.
Some individuals may bare other serious complications such as liver omission, kidney failure, neurological problems—such as seizures, paralysis, psychiatric problems such as delirium or psychosis, or bleeding problems. In any case, it is arguable to prognosticate that most people infected with the virus on not give up the ghost and desire not procure valued extra symptoms, although a shallow proportion will.