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COPD patients respond equally well to COVID-19 vaccine

A study that tested the immune response of COPD patients to COVID-19 vaccination has shown they respond in a similar way to healthy people. The findings by scientists from The University of Manchester and published as a research letter in the European Respiratory Journal are good news for patients with the common condition.

Chronic obstructive pulmonary disease, or COPD, makes it difficult for air to get in and out of the lungs causing breathlessness, coughing and frequent chest infections. According to the British lung Foundation, an estimated 1.2 million people are living with diagnosed COPD in the U.K., making it the second most common lung disease in the U.K., lisinopril husten after asthma. Around 2% of the whole population and 4.5% of all people aged over 40 live with diagnosed COPD. COPD patients have a higher risk of developing severe illness and mortality following COVID-19 infection.

As COPD patients are known to have a reduced immune response, doctors feared COVID-19 vaccination might be less effective on them. The scientists compared the SARS-COV-2 vaccine- specific immune responses in COPD patients with healthy people, using blood, nasal and airway samples. Vaccinated individuals, who had never been infected with COVID-19, donated samples more than two weeks after completing two doses of either the Oxford-AstraZeneca or Pfizer vaccine. Samples were analyzed from 27 vaccinated individuals: 11 with COPD and 16 healthy; and 43 pre-vaccinated individuals: 24 with COPD and 19 healthy.

COVID-19 vaccines work in slightly different ways, but all expose our immune system to the spike protein of SARS-CoV-2, which coats the virus particle and is essential for infecting our cells. Immune responses to the vaccine spike protein were analyzed, including levels of IgG and IgA antibodies, and T-cell responses.

Both vaccinated COPD patients and healthy individuals had higher anti-spike protein IgG antibody levels in plasma and airways compared to unvaccinated COPD patients and healthy individuals, with the level of vaccine-induced responses being similar in COPD patients and healthy subjects.

Dr. Thomas Southworth, Honorary Research Associate at The University of Manchester and Senior Scientist at the Medicines Evaluation Unit Ltd said: “The results of this study will be a great relief for patients with COPD who can rest assured they can derive protection from COVID-19 vaccination, despite an impaired immune system.

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