Asthma patients less likely to die from virus; new test better at telling who is – Health News Today

By Nancy Lapid

(Reuters) – The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

Asthma patients appear less likely to die from COVID-19

Patients with asthma who become infected with the new coronavirus appear to have no higher risk of hospitalization or need for mechanical breathing assistance compared to COVID-19 patients without asthma – and the asthma patients are less likely to die from the disease, a new study suggests. Researchers at a Boston healthcare system studied 562 asthma patients with COVID-19 and 2,686 similarly-aged COVID-19 patients without asthma. The two groups were hospitalized at similar rates (18% to 21%) and had similar need for mechanical ventilation (3% in the asthma group vs 4%). But the asthma patients were 70% less likely to die from the virus, researchers reported. None of the 44 patients with severe asthma died. “Although the factors underlying these findings are not yet known, important considerations include: possible biologic mechanisms … and possible protective effects of asthma medications (such as corticosteroids),” the researchers said in a report posted on Monday on medRxiv ahead of peer review. (

New test better at identifying who is still infectious

Becton Dickenson and Co’s BD Veritor System for rapid detection of the novel coronavirus is better than gold standard RT-PCR lab tests at distinguishing between infectious and non-infectious virus in swab samples obtained within a week of symptom onset, according to a new study. One drawback of the RT-PCR (real-time polymerase chain reaction) is that patients can test positive even after they are no longer infectious, because the tests detect small amounts of viral RNA that most likely represent infected cells that have died. Newer “antigen-based” tests look for viral proteins instead of RNA. The antigen-based approach could potentially “be used to identify and isolate contagious individuals more effectively than current RNA-based (RT-PCR) testing,” coauthor Celine Roger-Dalbert of BD Life Sciences told Reuters. “Although it may not replace RNA-based testing, because we still need to identify anyone who was infected in order to trace the spread of the virus, it should help make isolation more efficient and effective as a public health intervention used to slow down the spread of COVID-19,” she added. The study results were published on Monday on medRxiv ahead of peer review. (

Intubation may be less risky for doctors than feared

Placing a tube in a patient’s airway, or removing it, is thought to be one of the highest-risk procedures for medical staff, because of the very close proximity to air being expelled through the mouth of a potentially infected person. But in operating rooms, at least, these procedures might present less of a risk of virus transmission than has been…

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