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Original title: Feeding affects viral implantation in babies
A medical study published in the British journal Nature recently reported that babies are regulated by breastfeeding after birth because of the virus in their guts. The study showed that viral implantation occurs in stages and, if mixed or exclusively breastfed, will protect infants from some human viruses.
when microorganisms from different environments to the human body, and can be settled in a certain part and continue to grow, breeding offspring, this phenomenon is planted. Humans were born without viruses in their guts, but microbes such as the virus were planted shortly after birth, and scientists have long been blind to the process of planting the virus.
to investigate the virus at the beginning of a baby's life, University of Pennsylvania researcher Frederic Bushman and colleagues analyzed fecal samples from 20 healthy infants. Virus-like particles cannot be detected within 4 days of the baby's birth. But a month later, it was detected in most samples. To determine the source of the virus, the researchers sequenced the genome and found that pioneer bacteria were first planted in the baby's intestines shortly after birth, and that phages (viruses infected with bacteria) were the main source of the virus group when the baby was one month old. When babies are four months old, recognizable viruses (such as adenovirus and small ERN viruses) that replicate in human cells become more apparent.
team then compared the virus data with variables such as feeding history, birth style, and gender, and found that breastfeeding was associated with low aggregation of viruses that could replicate in human cells.
to verify the findings, the researchers took stool samples from another 125 infants, ranging from 3 months to 4 months of age, and finally detected human viruses in 30 percent of infants who drank formula. This compares with 9 per cent of exclusively breastfed or mixed-feeding infants.
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