Causes And Types Of Pneumonia
Viruses, bacteria, and fungi can all cause pneumonia. In the United States, common causes of viral pneumonia are influenza virus, respiratory syncytial virus , and SARS-CoV-2 . A common cause of bacterial pneumonia is Streptococcus pneumoniae . These bacteria can cause a wide range of infectionslike pneumoniaknown as pneumococcal disease.
There are several ways people can get sick with pneumonia:
- Community-acquired pneumonia ,
- Healthcare-associated pneumonia, and
Learn more about the causes of pneumonia.
Can You Catch Pneumonia More Than Once
Yes. Pneumonia is caused by many different microbes, and so getting it once does not protect you from getting it again. If you get pneumonia more than once you may need to have more investigations to understand why this has happened. It could be due to a problem in your chest or your immune system, and you may be referred to a specialist.
Things You Should Know About Pneumonia
- By Stephanie Watson, Executive Editor, Harvard Women’s Health Watch
Pneumonia is an infection that causes the air sacs in the lungs to fill up with fluid or pus, which makes it harder to breathe. The most common symptoms are cough that may be dry or produce phlegm, fever, chills and fatigue. Other symptoms may include nausea, vomiting, diarrhea, and pain in the chest. and shortness of breath. Signs that indicate a more severe infection are shortness of breath, confusion, decreased urination and lightheadedness. In the U.S., pneumonia accounts for 1.3 visits to the Emergency Department, and 50,000 deaths annually.
With the COVID-19 pandemic continuing to affect people around the world, pneumonia has become an even larger health concern. Some people infected with the COVID-19 have no symptoms, while others may experience fever, body ache, dry cough, fatigue, chills, headache, sore throat, loss of appetite, and loss of smell.
The more severe symptoms of COV-19, such as high fever, severe cough, and shortness of breath, usually mean significant lung involvement. The lungs can be damaged by overwhelming COVID-19 viral infection, severe inflammation, and/or a secondary bacterial pneumonia. COVID-19 can lead to long lasting lung damage.
Here are other important facts you should know about pneumonia:,
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How Common Is Pneumonia
Approximately 1 million adults in the United States are hospitalized each year for pneumonia and 50,000 die from the disease. It is the second most common reason for being admitted to the hospital — childbirth is number one. Pneumonia is the most common reason children are admitted to the hospital in the United States. Seniors who are hospitalized for pneumonia face a higher risk of death compared to any of the top 10 other reasons for hospitalization.
What Test Rules Out Pneumonia
There are times when pneumonia testing also involves testing for procalcitonin and C-reactive protein in the blood. The components of blood cells with the tendency to become inflamed are known as IL-1A, Inflammation is induced by Inflammation, etc. It is possible for clinicians to use these tests to distinguish between causes of inflammation, as well as to evaluate patients responses to treatment options.
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What To Think About
In most cases pneumonia is a short-term, treatable illness. But frequent bouts of pneumonia can be a serious complication of a long-term illness, such as chronic obstructive pulmonary disease . If you have a severe long-term illness, it may be hard to treat your pneumonia, or you may choose not to treat it. You and your doctor should discuss this. This discussion may include information about how to create an advance care plan.
For more information, see:
There are a number of steps you can take to help prevent getting pneumonia.
- Stop smoking. You’re more likely to get pneumonia if you smoke.
- Avoid people who have infections that sometimes lead to pneumonia.
- Stay away from people who have colds, the flu, or other respiratory tract infections.
- If you haven’t had measles or chickenpox or if you didn’t get vaccines against these diseases, avoid people who have them.
What Investigation Can Easily Confirm Pneumonia In Children
Often, your childs healthcare provider will perform a physical and thoroughly review his or her entire health history to determine if there is a pneumonia diagnosis. X-rays of the chest are one way to confirm a diagnosis. Using this test, images of bone and organs as well as internal organs are generated.
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Limit Contact With Others
One of the best things you can do when recovering from pneumonia is to limit your contact with others. As weve learned throughout the COVID-19 pandemicwhich can cause viral pneumoniastaying at least six feet away from others reduces the amount of viral or bacterial content they are exposed to as you breathe or talk.
What Is The Outlook For Pneumonia
People who are otherwise healthy often recover quickly when given prompt and proper care. However, pneumonia is a serious condition and can be life-threatening if left untreated and especially for those individuals at increased risk for pneumonia.
Even patients who have been successfully treated and have fully recovered may face long-term health issues. Children who have recovered from pneumonia have an increased risk of chronic lung diseases. Adults may experience:
- General decline in quality of life for months or years
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Who Is Most At Risk For Getting Pneumonia
People who have an increased risk of pneumonia include:
- People over the age of 65 and infants under age 2. The weakening immune system of older people makes them less able to fight off illnesses. Similarly, the immune system of infants is still developing and not at full-strength, making them more susceptible to infection.
- People with a health-caused weakened immune system. Examples include:
- People who are receiving chemotherapy
- Transplanted organ recipients
- People who have HIV/AIDS
- People with autoimmune disease and who are taking medications that suppress the immune system.
Is This A Pneumonia Relapse I Have Had A Low Grade Fever
What does a relapse of pneumonia feel like? Quora
A prospective observational study was performed to determine whether recurrent episodes of pneumonia caused by Pseudomonas aeruginosa in ventilated patients were due to a relapse of the previous clone or to reinfection with a new one. Diagnosis was based on quantitative cultures of secretions
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Lower Your Risk By Getting Vaccinated
In the United States, vaccines can help prevent infection by some of the bacteria and viruses that can cause pneumonia:
These vaccines are safe, but side effects can occur. Most side effects are mild and go away on their own within a few days. See the vaccine information statements to learn more about common side effects. Learn more about COVID-19 vaccines side effects.
Encourage friends and loved ones to make sure they are up to date with their vaccines.
World Pneumonia Dayexternal icon is observed each year on November 12th. Globally, pneumonia kills more than 670,000 children younger than 5 years old each year. This is greater than the number of deaths from any infectious disease, such as HIV infection, malaria, or tuberculosis.
Complications And Risk Factors
Pneumonia can sometimes cause serious complications and become life-threatening. Potential complications can include:
- breathing difficulties or even respiratory failure, which can require being placed on a ventilator in order to get oxygen
- worsening of chronic lung conditions such as chronic obstructive pulmonary disease
- fluid accumulation in the lungs, which can become infected and may need to be drained
- lung abscess, which is the formation of a pocket of pus in your lung
- bacteremia, when bacteria spread into your bloodstream, possibly leading to
People that may be at risk for more serious symptoms or complications include:
- children under 2 years old
- adults over 65 years old
There are several types of pneumonia. They can be classified by how you get the infection.
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Other Ways To Prevent Pneumonia
You can take the following steps to help prevent pneumonia:
- Wash your hands with soap and water or alcohol-based hand sanitizers to kill germs.
- Dont smoke. Smoking prevents your lungs from properly filtering out and defending your body against germs. For information about how to quit smoking, visit Smoking and Your Heart and Your Guide to a Healthy Heart. These resources include basic information about how to quit smoking. For free help and support, you may call the National Cancer Institutes Smoking Quitline at 1-877-44U-QUIT .
- Keep your immune system strong. Get plenty of physical activity and follow a healthy eating plan. Read more about heart-healthy living.
- If you have problems swallowing, eat smaller meals of thickened foodand sleep with the head of your bed raised up. These steps can help you avoid getting food, drink, or saliva into your lungs.
- If you have a planned surgery, your doctor may recommend that you dont eat for 8 hours or drink liquids for 2 hours before your surgery. This can help prevent food or drink from getting into your airway while you are sedated.
- If your immune system is impaired or weakened, your doctor may recommend you take antibiotics to prevent bacteria from growing in your lungs.
Things That You Can Do To Help Your Child At Home Are
- Control the fever with the proper medicine and right strength for the age of your child. Fevers lower than 101° F do not need to be treated unless the child is uncomfortable .
- Give your child plenty of fluids to prevent dehydration.
- See that your child gets lots of rest.
- Do not give over-the-counter cough medicines or other OTC medicines without asking the health provider first. The child needs to cough and bring up the phlegm. Coughing is the bodys way of clearing the infection from the lungs.
- Avoid exposing your child to tobacco smoke or other irritants in the air.
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Bronchitis Vs Pneumonia: Why Theyre Related And How Theyre Different
A pneumonia diagnosis is based on your medical history, a physical exam, and certain test results. Your doctor determines which type of pneumonia you have based on how you became infected, what your X-ray or lung exam reveals, and which kind of germ is responsible for your infection.
During a physical exam, your doctor will check your vital signs and listen to your lungs with a stethoscope. Decreased breath sounds is an indication of a lot of inflammation, says Michelle Barron, MD, a professor in the division of infectious diseases at University of Colorado School of Medicine in Aurora.
If your doctor suspects pneumonia, they may order further diagnostic tests, such as a chest X-ray to help determine the extent of the infection. Blood tests and an analysis of the patients sputum can pinpoint whats causing the pneumonia. Pulse oximetry measures the oxygen level in your blood .
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Going To The Hospital
If you have severe pneumonia, you may have to go to the hospital:
- In most cases of pneumonia you get in your daily life, such as at school or work , it is not necessary to go to the hospital.footnote 2
- About one-third of people with community-based pneumonia are age 65 or older.footnote 2 Older adults are treated in the hospital more often and stay longer for the condition than younger people.footnote 2 Pneumonia is more serious in this group, because they often have and may develop other medical problems.
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Is Pneumonia Treated Any Differently In Children
Essentially no. Just like adults, bacterial causes of pneumonia in children may be treated with antibiotics. Antibiotics are not used to treat pneumonia caused by viruses. Flu-related pneumonia may be treated with antiviral medicine if caught early in the course of illness. Most cases of pneumonia are treated with comfort care measures that ease symptoms. These may include:
- Drinking more fluids.
- Getting more rest.
- Taking over-the-counter medicines for cough and acetaminophen for fever. Be sure to check with your healthcare provider or pharmacist if you have any questions or concerns about giving medicines to your child.
- Using a cool mist humidifier in your childs room.
Take Steps To Help Your Body Recover
The following steps can help your body recover from pneumonia.
- Choose heart-healthy foods, because good nutrition helps your body recover.
- Drink plenty of fluids to help you stay hydrated.
- Dont drink alcohol or use illegal drugs. Alcohol and illegal drugs weaken your immune system and can raise the risk of complications from pneumonia.
- Dont smoke and avoid secondhand smoke. Breathing in smoke can worsen your pneumonia. Visit Smoking and Your Heart and Your Guide to a Healthy Heart. For free help quitting smoking, you may call the National Cancer Institutes Smoking Quitline at 1-877-44U-QUIT .
- Get plenty of sleep. Good quality sleep can help your body rest and improve the response of your immune system. For more information on sleep, visit our How Sleep Works health topic.
- Get light physical activity. Moving around can help you regain your strength and improve your recovery. However, you may still feel short of breath, and activity that is too strenuous may make you dizzy. Talk to your doctor about how much activity is right for you.
- Sit upright to help you feel more comfortable and breathe more easily.
- Take a couple of deep breaths several times a day.
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Spreading Pneumonia To Others
If your pneumonia is caused by a virus or bacteria, you may spread the infection to other people while you are contagious. How long you are contagious depends on what is causing the pneumonia and whether you get treatment. You may be contagious for several days to a week.
If you get antibiotics, you usually cannot spread the infection to others after a day of treatment.
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What Is The Outlook If I Have Aspiration Pneumonia
Most people who get aspiration pneumonia and get treatment will survive. The prognosis for aspiration pneumonia also depends on your overall health and other conditions that you may have and how sick you were when you started treatment.
Untreated aspiration pneumonia can be dangerous, resulting in things like lung abscesses or lung scarring. In fact, it can result in death.
What Increases Your Risk
You are more likely to get pneumonia if you:
- Smoke. Cigarette smoking is a strong risk factor for pneumonia in healthy young people.
- Have another medical condition, especially lung diseases such as chronic obstructive pulmonary disease or asthma.
- Are younger than 1 year of age or older than 65.
- Have an impaired immune system.
- Take medicine called a proton pump inhibitor that reduces the amount of stomach acid.footnote 3, footnote 4
- Drink excessive amounts of alcohol.
- Recently had a cold or the flu.
You are more likely to have complications of pneumonia and need to go to the hospital if you:
- Are older than 65.
- Have some other illness , or have gone to the hospital for a medical problem within the last 3 months.
- Have had your spleen removed or do not have a working spleen .
- Have an alcohol use problem.
- Have a weak immune system.
- Reside in a place where people live close together, such as a university dorm or nursing home.
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Questions About Your Symptoms
Bacterial pneumonia, which is the most common form, tends to be more serious than other types of pneumonia, with symptoms that require medical care. The symptoms of bacterial pneumonia can develop gradually or suddenly. Fever may rise as high as a dangerous 105 degrees F, with profuse sweating and rapidly increased breathing and pulse rate. Lips and nailbeds may have a bluish color due to lack of oxygen in the blood. A patient’s mental state may be confused or delirious.
The symptoms of viral pneumonia usually develop over a period of several days. Early symptoms are similar to influenza symptoms: fever, a dry cough, headache, muscle pain, and weakness. Within a day or two, the symptoms typically get worse, with increasing cough, shortness of breath and muscle pain. There may be a high fever and there may be blueness of the lips.
Symptoms may vary in certain populations. Newborns and infants may not show any signs of the infection. Or, they may vomit, have a fever and cough, or appear restless, sick, or tired and without energy. Older adults and people who have serious illnesses or weak immune systems may have fewer and milder symptoms. They may even have a lower than normal temperature. Older adults who have pneumonia sometimes have sudden changes in mental awareness. For individuals that already have a chronic lung disease, those symptoms may worsen.
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