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One of the earliest, peer-reviewed studies looking into the Omicron variant of COVID-19 suggests that people previously infected with COVID, and those vaccinated, will have some, 'stronger than basic' defence against this new strain of concern.

Immunologists have found that the infant immune system is stronger than most people think and beats the adult immune system at fighting off new pathogens.

Researchers have identified rare, naturally occurring T cells that are capable of targeting a protein found in SARS-CoV-2 and a range of other coronaviruses. The findings suggest that a component of this protein, called viral polymerase, could potentially be added to COVID-19 vaccines to create a longer-lasting immune response and increase protection against new variants of the virus.

Asthma sufferers generally find their condition gets worse at night. Now researchers may understand why. Melatonin, a sleep hormone that is sometimes prescribed to treat insomnia, exasperates the constriction of the bronchus -- the pathway that moves air to and from your lungs, according to a new study.