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Pneumonia
symptoms of pneumonia in children
Pneumonia in small children commonly occurs in infants and toddlers under two years old, often starting abruptly. It usually begins with symptoms of an upper respiratory infection several days before onset. The main clinical symptoms are as follows: First, there is fever, which can be irregular, remittent, or persistent; in newborns or severely malnourished children, the body temperature may not rise or may be below normal. Second, there is coughing, which is generally frequent; initially, it is a dry, irritating cough, but during the peak of the illness, the cough may subside, returning with phlegm during the recovery period. Third, shortness of breath arises, typically after fever and coughing; sometimes it is accompanied by general symptoms such as listlessness, reduced appetite, restlessness, mild diarrhea, or vomiting.
Is pneumonia serious?
Is pneumonia serious, and what will happen if it worsens or goes untreated? Severe pneumonia can lead to septic shock and can even be life-threatening. If pneumonia is not treated or not treated thoroughly, it can deteriorate into the following conditions: First, it can cause lung abscesses and empyema, and even lead to pericarditis, meningitis, and more; Second, the infection can enter the bloodstream, causing bacteremia and even septic shock; Third, the patient's continuous high fever can lead to febrile convulsions and even the possibility of coma; Fourth, extensive pneumonia can reduce the function of the alveoli, causing hypoxia and carbon dioxide retention. Hypoxia can affect the function of the nervous system, and patients with severe pneumonia may experience drowsiness, irritability, and even convulsions and coma.
The function of the pneumonia vaccine
Pneumonia vaccines are generally aimed at preventing infections caused by Streptococcus pneumoniae. There are two common types of vaccines: the 23-valent polysaccharide vaccine, which is suitable for high-risk populations over two years old, and the 7-valent or 13-valent conjugate vaccines, which are mainly used for vaccinating infants under two years of age. Streptococcus pneumoniae is the most common and widespread bacterium causing pneumonia, and pneumonia caused by this bacterium is also the most prevalent worldwide. It is also the most significant pathogen in community-acquired pneumonia in children and a major cause of otitis media, meningitis, and bacteremia in children. The pneumonia vaccines mainly target common serotypes of Streptococcus pneumoniae, such as the 7-valent or 13-valent, designed to prevent infections from seven or thirteen serotypes, respectively, while the 23-valent vaccine aims to prevent infections from 23 serotypes. These pneumonia vaccines play a significant protective role in preventing infections caused by Streptococcus pneumoniae, however, they cannot prevent all cases of pneumonia.
Differential Diagnosis of Pediatric Pneumonia
Childhood pneumonia needs to be differentiated from other respiratory diseases such as bronchial foreign bodies, bronchial asthma, and pulmonary tuberculosis. A bronchial foreign body generally has a history of inhalation of foreign objects, sudden choking coughs, and a chest X-ray might indicate atelectasis or pulmonary emphysema. If the foreign body has been present for a long time, the disease course is prolonged and may lead to secondary infections, similar to pneumonia or concurrent with pneumonia. The differentiation of bronchial foreign body involves detailed medical history inquiries to check for inhaled foreign objects, then using symptoms and auxiliary examinations like chest X-rays for confirmation. Bronchial asthma, especially in children, might not always present with obvious wheezing attacks but rather persistent coughing. The X-ray might show increased and disordered lung markings and pulmonary emphysema, which can easily be confused with pneumonia. Typically, children with bronchial asthma have an allergic constitution and generally require pulmonary function tests and other auxiliary examinations to differentiate from pneumonia. Pulmonary tuberculosis generally occurs in those with a history of contact with tuberculosis patients. Their tuberculin skin test is positive, and X-rays may show features of tuberculosis lesions in the lungs, which can be used to differentiate from pneumonia.
Can pneumonia vaccines prevent mycoplasma pneumonia?
There are currently two types of pneumonia vaccines available domestically: the 23-valent polysaccharide vaccine and the 7-valent or 13-valent vaccines. These vaccines primarily prevent infections caused by certain serotypes of Streptococcus pneumoniae. The pneumonia vaccines cannot prevent Mycoplasma pneumonia, as Mycoplasma and Streptococcus pneumoniae are two different types of pathogens and do not share the same antibodies for protective effects. Thus, the pneumonia vaccines are mainly for preventing diseases related to Streptococcus pneumoniae infections, and are ineffective against Mycoplasma pneumonia.
Can pneumonia be cured?
Can pneumonia be cured, and will there be any sequelae? Generally speaking, common pneumonia without complications can be completely cured. If pneumonia infection is detected, seek medical attention in a timely manner and treat it rationally under the guidance of a professional doctor, it generally will not leave sequelae or affect lung function. However, some complications of pneumonia, such as meningitis and pericarditis, may leave symptoms like headaches, dizziness, palpitations, and chest pain. Ordinary pneumonia might leave streaky shadows or irregular pleura on chest X-rays or lung CT scans, but these will not impact the human body. Patients who have previously been infected with tuberculosis may have calcification spots in their lungs, which is a normal phenomenon. Some people may experience sequelae after treatment, such as hearing loss caused by the use of antimicrobial drugs, and avascular necrosis of the femoral head occurring after SARS treatment; however, these are possibly side effects of the drugs, rather than sequelae of pneumonia.
How many shots are in the pneumonia vaccine?
Currently, there are two general types of vaccines for preventing pneumococcal pneumonia. One type is the 23-valent vaccine, suitable for high-risk populations over two years old. The other type includes the 7-valent or 13-valent vaccines, which are for preventing pneumococcal infections in infants under two years old. Infants under two usually follow a "three plus one" vaccination regimen, which involves three primary immunization doses with at least one month between each dose, followed by a booster shot. Additionally, adults over two years old or other high-risk groups are advised to take the 23-valent vaccine, which requires only a single dose. However, those who are frail or have poor immune responses may need a second booster dose five years after the initial vaccination.