Pneumonia decreases by 35% in children: Study


Sydney, Nov 12 (IANS): Researchers have found that severe pneumonia decreases by 35 per cent in children who receive a vaccine against a pneumonia-causing bacteria.

The research presented at the World Congress of the World Society for Pediatric Infectious Diseases in Philippines was among the first to evaluate pneumococcal vaccines in Asia, as pneumococcus was often overlooked as a cause of pneumonia because it is challenging to detect.

The study, a collaborative effort between the Murdoch Children's Research Institute (MCRI) and the University of Melbourne along with colleagues in the Asia-Pacific region, shows pneumonia is the most common reason why children are admitted to hospital in Laos, with most requiring treatment with oxygen, especially young infants.

Laos was the first country in Southeast Asia to introduce the pneumococcal conjugate vaccine (PCV13) into its national immunisation program in 2013, which protects against the 13 most common types of pneumococcus.

"Vaccinating children protects the whole community by reducing the spread of pneumococcus because little children who commonly carry pneumococcus in the back of their nose are mostly responsible for the spread of these bacteria," said study reseacher Fiona Russell from Murdoch Children's Research Institute in Australia.

For the study, the research team took pneumococcus samples from the noses of healthy children and children with pneumonia.

While most children with pneumococcus in their nose remain free of symptoms, a small but important proportion of children will have bacteria that spread into the lungs or bloodstream, causing serious infection and possibly death.

"By discovering that the bacteria is commonly carried at the back of the nose (both in healthy children and children with pneumonia), our study highlights that it is likely a significant contributor to severe infections in Laos," Russell added.

The study found one in five hospital admissions for children under five years of age in Laos is due to pneumonia.

Professor Russell said among these children, one third require oxygen treatment.

"One of the main causes of death from pneumonia is a lack of oxygen in the blood. Supplementary oxygen is a life-saving therapy that is unfortunately not consistently available across hospitals in Laos," she said.

Professor Russell said her team had developed a new method using data collected from a hospital in Laos, to demonstrate that the vaccine worked against the severest form of pneumonia.

Every year more than 800,000 die from pneumonia worldwide but the highest burden of disease is in low-to-middle income countries such as Laos.

Today is World Pneumonia Day, which raises awareness about the world's leading infectious killer of children under the age of five, the study said.

  

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