Can pneumonia vaccines prevent mycoplasma pneumonia?

Written by Li Jiao Yan
Neonatology
Updated on September 03, 2024
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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.

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Pulmonology
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Is pneumonia contagious?

Pneumonia can be divided into many types, including viral pneumonia, bacterial pneumonia, and those caused by special bacteria such as tuberculosis bacillus, and atypical bacteria such as Legionella, Mycoplasma, Chlamydia, etc. Generally, pneumonia does not cause large-scale disseminated transmission, because most people have normal immune systems that can resist these less virulent bacteria; however, in populations with lower immunity, inhaling droplets from patients with bacterial pneumonia can potentially lead to pneumonia. However, pneumonias caused by "SARS", anthrax, pneumonic plague, etc., are highly contagious and can cause large-scale transmission through droplets, and these are strictly controlled infectious diseases in our country. In cases of open tuberculosis, the patient's sputum and cough droplets might contain the pathogen, which could then infect those in close contact. Infectious pneumonia typically has an abrupt onset, with an incubation period of 2-10 days, and fever as the initial symptom, generally above 38℃, possibly accompanied by chills, coughing, scant sputum, occasional bloody sputum, palpitations, shortness of breath, and in some cases, difficulty breathing. It may also be accompanied by muscle soreness, headaches, joint pain, fatigue, and diarrhea.

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How many doses are there for the pneumonia vaccine?

Currently, there are two types of vaccines commonly used to prevent pneumococcal diseases. One type is the 23-valent polysaccharide vaccine, suitable for high-risk populations over two years old. The other type includes the 7-valent or 13-valent conjugate vaccines, used for vaccinating infants under two years old. The vaccination schedule for the 7-valent or 13-valent vaccines follows a "three plus one" program, which means three primary immunization doses with at least one month between each dose, followed by a booster dose. For the 23-valent vaccine, high-risk individuals over two years old generally require only a single dose; however, immunocompromised patients may need a booster shot, typically recommended five years after the initial vaccination.

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What should a child with pneumonia eat?

Childhood pneumonia is an infectious disease that not only presents symptoms related to the respiratory system but also may include symptoms from the gastrointestinal tract, such as vomiting, diarrhea, loss of appetite, and abdominal distension. Therefore, the diet for pneumonia must be light and easy to digest. For instance, if the child is breastfed, the mother should consume a light and digestible diet. If the child is fed with cow's milk, the milk can be diluted appropriately to aid digestion. Supplementary foods can generally include thin porridge, noodles, rice paste, vegetables, and fruits, as well as a moderate amount of lean meat and eggs, but not in excess. Oily and spicy foods should not be included.

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Symptoms of pneumonia cough in children

Pneumonia in infants commonly occurs in young children, especially those under two years of age. The onset of the disease is usually rapid, starting with symptoms of upper respiratory tract infections that gradually evolve into more pronounced respiratory symptoms. The cough is frequent, initially a dry, irritating cough, that progressively worsens as the disease advances. In cases of severe pneumonia, the cough may actually lessen. During the recovery phase, the cough gradually diminishes and rattling sounds can be heard in the throat due to mucus. After the mucus is cleared, there may still be occasional bouts of irritating dry cough, which will slowly subside.

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Pneumonia symptoms in children

Children presenting with pneumonia primarily exhibit symptoms related to respiratory infections, with fever often as a typical manifestation. Common symptoms include sudden chills, high fever, fatigue, headache, nausea, and vomiting, followed by an irritative dry cough. As the condition progresses, the dry cough turns into a productive cough with phlegm, accompanied by difficulty breathing, chest pain, and expectoration. Some may also show signs of oxygen deprivation such as cyanosis of the lips and changes in nail color. Active chest X-ray and routine blood tests are necessary for diagnosis.