Skip to main content
Go to homepage

Print Page

Pneumocystis Pneumonia

What Is Pneumocystis Pneumonia?

Pneumocystis pneumonia (PCP) is a lung infection caused by a fungus. It's rare in healthy people, and usually affects those with a weak immune system. It's the most common infection diagnosed in people with HIV infection or AIDS. It's seen much less often now because people infected with HIV get special medicine to prevent HIV from becoming AIDS.

What Are the Signs & Symptoms of Pneumocystis Pneumonia?

Symptoms of pneumocystis (new-meh-SISS-tis) pneumonia include:

  • fever
  • dry cough
  • trouble breathing
  • chest pain
  • night sweats or chills
  • weight loss
  • feeling very tired

Sometimes the symptoms start suddenly and are severe. Other times they may start out mild and develop slowly, over days to weeks.

Who gets Pneumocystis Pneumonia?

A fungus called Pneumocystis jirovecii causes pneumocystis pneumonia. It can live in the lungs of healthy people without causing problems. But it can be life-threatening if it spreads to someone with a weak immune system.

People at risk for getting sick with PCP include those who:

Is Pneumocystis Pneumonia Contagious?

PCP is contagious. The fungus that causes it can spread from person to person through the air. People can spread the disease even when they're healthy and have no symptoms.

How Is Pneumocystis Pneumonia Diagnosed?

Doctors might suspect PCP in patients with a fever, cough, and trouble breathing who also have a weak immune system. The doctor might order a chest X-ray or blood tests to help with the diagnosis. To confirm it, the doctor will look for the fungus in samples of fluid or tissue from the lungs.

How Is Pneumocystis Pneumonia Treated?

Early treatment is key because PCP can be life-threatening. Doctors treat the infection with antibiotics, either by mouth or intravenously (into a vein), for about 3 weeks. For severe symptoms, the doctor also might give a steroid medicine. This eases inflammation in the lungs, and is different from the steroids that athletes might use.

Most kids will need treatment in a hospital. They may need IV fluids and oxygen if they have trouble breathing. Children with severe symptoms may need breathing help from a ventilator (breathing machine) until they get better.

Can Pneumocystis Pneumonia Be Prevented?

No vaccine can prevent PCP. But people with HIV/AIDS or other conditions that weaken the immune system can take antibiotics to prevent pneumocystis infection.

Most infants born to HIV-infected mothers get antibiotic treatment to prevent PCP until doctors know if the baby also has HIV. This begins when the baby is around 1 month old. Babies found to be HIV-negative can stop taking the antibiotics. Those who are HIV-positive will continue on antibiotics until the doctor decides they're not needed. This usually is when the medicine treating the HIV or AIDS is working well, and the baby's immune system is strong enough to fight the fungus.

What Else Should I Know?

Some antibiotics used to treat PCP can have side effects, such as rash, diarrhea, or fever. The health care team will watch for these and manage them in the hospital. If needed, they can switch to a different medicine.

Reviewed by: Elana Pearl Ben-Joseph, MD
Date Reviewed: Jan 13, 2020

Lea este articulo en Español

What next?

Summit Mall Play Area
Answer Key:
Click to expand
There are 10 nurses in the picture.

And we have many more pediatric primary care providers in Northeast Ohio. You can meet some of them here.
Summit Mall Play Area
Answer Key:
Click to expand
The five differences are:
– Phone color
– Coat pocket
– Stethoscope earpiece color
– Stethoscope bell dot
– Clipboard paper color

Need help finding a doctor, choosing a location or getting a general question about Akron Children's answered? Call us or fill out the form and we'll help in any way we can.
Summit Mall Play Area
Answer Key:
Click to expand
The two matching doctors are 9 and 14.

With virtual visits, you can see our pediatric experts from the comfort of home or wherever you are.
Summit Mall Play Area
Answer Key:
Click to expand
The correct path:
The Correct Path
We offer many ways to get pediatric care all over Northeast Ohio. Use this page to find the right kind of care and the most convenient location for you.