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Nasal Microbiota May Determine Severity of Common Cold

There’s no cure for the common cold — but researchers are always working on ways to make it less miserable. The latest is a study from DuPont Nutrition and Health, which found that nasal microbiomes may be linked with symptom severity in rhinovirus infections, including the common cold.


Participants in the study included 152 people. The researchers looked at their nasal micbrobiomes both before and after giving the cold virus. They then gave them a drink containing Bifidobacterium animalis subsp. lactic BI-04, which has been found in previous studies to be associated with a lower risk of upper respiratory illness.


The researchers found that the most common nasal microbiota types were Staphyloccocus, Corynebacterium/Alloiococcus, Moraxella, and Pseudomonadaceae/Mixed. Each nasal microbiota type had its own inflammatory response and viral load profile.


They also found that the people with Staphyloccocus and Corynebacterium/Alloiococcus types had lower viral load than those with other types of nasal microbiota.


Interestingly, the researchers did not find any effect from the probiotic drink on the participants nasal or gut microbiota.


Researchers from DuPont Nutrition and Health led the study. It was published on July 30, 2018, in the journal Scientific Reports.

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