Pneumonia is caused by Viruses, bacteria, or (in rare cases) parasites or other organisms. Pneumonia itself isn't contagious, but the organsims that cause it can be.
Transmission of these organisms that can cause pneumonia can be done several ways:
*After you breathe infected air particles into your lungs.
*After you breathe certain bacteria from your nose and throat into your lungs. This generally occurs during sleep.
*During or after a viral upper respiratory infection, such as a cold or influenza (flu).
*As a complication of a viral illness, such as measles or chickenpox.
*If you breathe large amounts of food, gastric juices from the stomach, or vomit into the lungs (aspiration pneumonia). This can happen when you have had a medical condition that affects your ability to swallow, such as a seizure or stroke.
Symptoms:
Symptoms of pneumonia caused by bacteria in otherwise healthy people younger than 65 usually come on suddenly. They often start during or after an upper respiratory infection, such as influenza or a cold, and may include:
Cough, often producing mucus (sputum) from the lungs. Mucus may be rusty or green or tinged with blood.
Fever, which may be less common in older adults.
Shaking, "teeth-chattering" chills (one time only or many times).
Fast, often shallow, breathing and the feeling of being short of breath.
Chest wall pain that is often made worse by coughing or breathing in.
Fast heartbeat.
Feeling very tired (fatigue) or feeling very weak (malaise).
Symptoms of pneumonia not caused by bacteria (nonbacterial) include fever, cough, shortness of breath, and little mucus when you cough. They may come on gradually and are often less obvious and less severe than those of bacterial pneumonia. Many people don't know that they have nonbacterial pneumonia because they do not feel sick.
When symptoms are mild, your doctor may call your condition "walking pneumonia."
Older adults and children:
Older adults may have different, fewer, or milder symptoms, such as no fever or a cough with no mucus (a dry or nonproductive cough). The major sign of pneumonia in older adults may be a change in how clearly they think (confusion or delirium) or a worsening of a lung disease they already have.
In children, symptoms may depend on age:
In infants younger than 1 month of age, symptoms may include having little or no energy (lethargy), feeding poorly, grunting, or having a fever.
In children, symptoms of pneumonia are often the same as in adults. Your doctor will look for signs such as cough and a breathing rate over 60 breaths per minute.
2007-01-04 05:26:48
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answer #1
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answered by Country Hick 5
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Pneumonia is an illness of the lungs and respiratory system in which the alveoli (microscopic air-filled sacs of the lung responsible for absorbing oxygen from the atmosphere) become inflamed and flooded with fluid. Pneumonia can result from a variety of causes, including infection with bacteria, viruses, fungi, or parasites. Pneumonia may also occur from chemical or physical injury to the lungs, or indirectly due to another medical illness, such as lung cancer or alcohol abuse.
Typical symptoms associated with pneumonia include cough, chest pain, fever, and difficulty breathing. Diagnostic tools include x-rays and examination of the sputum. Treatment depends on the cause of pneumonia; bacterial pneumonia is treated with antibiotics.
Pneumonia is a common illness, occurs in all age groups, and is a leading cause of death among the elderly and people who are chronically ill. Vaccines to prevent certain types of pneumonia are available. The prognosis for an individual depends on the type of pneumonia, the appropriate treatment, any complications, and the person's underlying health.
2007-01-04 05:13:25
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answer #2
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answered by Anonymous
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Pneumonia is the correct spelling.
Causes
Serious side effects in cancer patients most often occur in the lungs and may indicate that the cancer is progressing or that the patient has developed a new problem. Both cancer and the therapies used to treat it can injure the lungs or weaken the immune system in ways that make cancer patients especially susceptible to the bacteria, fungi, viruses, and other organisms that cause pneumonia.
Tumors and infections can block the patient's airway or limit the lungs' ability to rid themselves of fluid and other accumulated secretions that make breathing difficult. Other factors that increase a cancer patient's risk of developing pneumonia include:
radiation therapy
chemotherapy
surgery
depressed white blood cell count (neutropenia)
antibiotics
steroids
malnutrition
limited mobility
splenectomy-immune system deficits
The risk of developing pneumonia is greatest for a cancer patient who has one or more additional health problems.
2007-01-04 05:11:43
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answer #3
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answered by Deconstitutionalization 4
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it`s not suposed to be but here in RI kids are getting it and its been turning into meningitis and encephalitis.my son has pneumonia now its a cough with heavy chest feeling and tiredness,can also cause wheezing
2007-01-04 05:13:30
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answer #4
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answered by lily 4
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I answer first, and if the answering makes me think of or makes my day, then i will famous person. i understand...it is choosy of me, sorry. o.o yet this style I finally end up pointing my followers and contacts to the *reliable stuff* you already know? ^__^ Or a minimum of i attempt to. yet have a famous person besides purely for being affected person and information. ^_^
2016-10-29 23:54:58
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answer #5
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answered by ? 4
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I have wondered that too. The shot of pneumonia only protects against certain strains...
2007-01-04 05:11:58
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answer #6
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answered by Patches6 5
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yes it is contagious, so is bronchitis. but don't take my word for it, chk it out on google
2007-01-04 05:15:05
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answer #7
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answered by Anonymous
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sure it is best check on google
2007-01-04 05:11:37
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answer #8
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answered by keiren l 1
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