A new study has discovered the reason why some people suffer worse cold than others.
The organisms living in your nose is a key factor that determines the severity of the cold symptoms one develops, the Daily Mail reported.
More bacteria that causes food poisoning, tract infections and boils, the more likely you are to have a worse cough and cold.
For the study, 157 participants were injected with rhinovirus type 39, a common cold virus. The team, from the University of Virginia School of Medicine, examined the nasal microbiome before and after the injection.
They found nasal bacteria falls into six different patterns. The severity of the symptoms depended on which pattern the individual had.
Those who had a great deal of Staphylococcus bacteria had severe nasal symptoms than the others. It can cause toxic shock syndrome and food poisoning.
The Daily Mail quotes Dr Ronald Turner, a professor of pediatrics at the University of Virginia School of Medicine: "The first surprise was that you can kind of identify these different buckets that people kind of fit into."
"And then the fact that the buckets seem to have some impact on how you respond to the virus and how sick you get was also interesting.
"So the background microbiome, the background bacterial pattern in your nose, had influences on the way that you reacted to the virus and how sick you got."
Researchers say their findings could help develop individualised treatments for the virus.
