A recent cold can trigger a strong interferon response in your airways, essentially putting your immune system on "high alert".
This discovery may help explain why children often have milder COVID-19 cases. Because kids tend to get frequent colds, their immune systems are more regularly "practiced" and primed to fight off respiratory threats. Benefit of the Common Cold? It May Prevent COVID
Could that annoying stuffy nose actually be doing you a favor? Recent research suggests that the common cold—specifically the rhinovirus—might offer some temporary protection against COVID-19. A recent cold can trigger a strong interferon
For those who did get COVID, a recent cold was linked to a nearly 10-fold lower viral load , which often means milder symptoms. Why Kids Might Be More Resilient Could that annoying stuffy nose actually be doing
It’s not just about current colds. Past exposure to certain seasonal coronaviruses can create memory T cells that recognize and attack proteins common to both the cold and COVID-19.
One study showed that people who had a cold within the previous 30 days were 48% less likely to contract COVID-19.
Scientists have found that when your body fights off a cold, it jump-starts its antiviral defenses, which can help block other viruses like SARS-CoV-2 from taking hold.