Pneumonia is a form of acute respiratory infection that affects the lungs. The lungs are made up of small sacs called alveoli, which fill with air when a healthy person breathes. When an individual has pneumonia, the alveoli are filled with pus and fluid, which makes breathing painful and limits oxygen intake.
Pneumonia is the single largest infectious cause of death in children worldwide. Pneumonia killed 740 180 children under the age of 5 in 2019, accounting for 14% of all deaths of children under 5 years old but 22% of all deaths in children aged 1 to 5 years. Pneumonia affects children and families everywhere, but deaths are highest in southern Asia and sub-Saharan Africa. Children can be protected from pneumonia, it can be prevented with simple interventions, and it can be treated with low-cost, low-tech medication and care.
Pneumonia can be spread in several ways. The viruses and bacteria that are commonly found in a child's nose or throat can infect the lungs if they are inhaled. They may also spread via air-borne droplets from a cough or sneeze. In addition, pneumonia may spread through blood, especially during and shortly after birth. More research needs to be done on the different pathogens causing pneumonia and the ways they are transmitted, as this is of critical importance for treatment and prevention.
The presenting features of viral and bacterial pneumonia are similar. However, the symptoms of viral pneumonia may be more numerous than the symptoms of bacterial pneumonia. In children under 5 years of age who have cough and/or difficult breathing, with or without fever, pneumonia is diagnosed by the presence of either fast breathing or lower chest wall indrawing where their chest moves in or retracts during inhalation (in a healthy person, the chest expands during inhalation). Wheezing is more common in viral infections.
While most healthy children can fight the infection with their natural defences, children whose immune systems are compromised are at higher risk of developing pneumonia. A child's immune system may be weakened by malnutrition or undernourishment, especially in infants who are not exclusively breastfed.
Pneumonia should be treated with antibiotics. The antibiotic of choice for first line treatment is amoxicillin dispersible tablets. Most cases of pneumonia require oral antibiotics, which are often prescribed at a health centre. These cases can also be diagnosed and treated with inexpensive oral antibiotics at the community level by trained community health workers. Hospitalization is recommended only for severe cases of pneumonia.
Preventing pneumonia in children is an essential component of a strategy to reduce child mortality. Immunization against Hib, pneumococcus, measles and whooping cough (pertussis) is the most effective way to prevent pneumonia.
Adequate nutrition is key to improving children's natural defences, starting with exclusive breastfeeding for the first 6 months of life. In addition to being effective in preventing pneumonia, it also helps to reduce the length of the illness if a child does become ill.
Addressing environmental factors such as indoor air pollution (by providing affordable clean indoor stoves, for example) and encouraging good hygiene in crowded homes also reduces the number of children who fall ill with pneumonia.
The WHO and UNICEF integrated Global Action Plan for Pneumonia and Diarrhoea (GAPPD) aims to accelerate pneumonia control with a combination of interventions to protect, prevent and treat pneumonia in children with actions to:
Several countries including Bangladesh, India, Kenya, Uganda and Zambia have developed district, state and national plans to intensify actions for the control of pneumonia and diarrhoea. Many more have integrated diarrhoea and pneumonia specific action into their national child health and child survival strategies.
Effective diagnosis and treatment of pneumonia is critical to improve child survival. To meet the Sustainable Development Goal targets for SDG 3.2.1 (reducing child mortality), ending preventable diarrhoea- and pneumonia-related deaths is an urgent priority.
Less often, bacteria can cause pneumonia. When that happens, kids usually will become sick more quickly, starting with a sudden high fever, cough, and sometimes fast breathing. Types of bacterial pneumonia include pneumococcal pneumonia, mycoplasma pneumonia (walking pneumonia), and pertussis (whooping cough).
Doctors treat bacterial pneumonia with an antibiotic taken by mouth. Usually, this can be done at home. The antibiotic they use depends on the type of bacteria thought to have caused the pneumonia.
Kids with pneumonia need to get plenty of rest and drink lots of liquids while the body works to fight the infection. Acetaminophen (such as Tylenol) or ibuprofen (such as Advil or Motrin) can help to ease a fever if it makes your child uncomfortable. Do not give aspirin to your child or teen as it's linked to a rare but serious illness called Reye syndrome, which can lead to liver failure and death.
If the doctor thinks that your child might have bacterial pneumonia, they will prescribe antibiotics. Give the medicine on schedule for as long as directed. Doing so will help your child recover faster and help prevent the infection from spreading to others. If your child is wheezing, the doctor might recommend using breathing treatments.
These germs also can spread if someone shares drinking glasses and eating utensils with an infected person or touches their used tissues or handkerchiefs. If someone in your home has a respiratory infection or throat infection, keep their drinking glasses and eating utensils separate from those of other family members, and wash your hands well and often, especially if you're handling used tissues or dirty handkerchiefs.
The flu vaccine and an updated COVID-19 vaccine are recommended for all adults and kids ages 6 months and up. These vaccines are extra important for kids who have a chronic illness, such as a heart or lung disorder or asthma.
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