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In addition, immune deficits associated with both the blood cancer and the treatment used make vaccination against SARS\u2010CoV\u20102 less effective than in immunocompetent individuals. Molnupiravir is one of the first oral antiviral drugs to demonstrate a significant benefit in reducing hospitalisation and death in COVID\u201019 in the general population. In this context, 175 haematology patients with diagnosed COVID\u201019, and treated with MOL between January and April 2022, came under our scrutiny with a view to defining their clinical characteristics and outcomes. The most common underlying conditions were lymphomas (45%), multiple myelomas (21%) and acute leukaemias or myelodysplastic syndrome (35%). Of all, 77% of the patients were vaccinated, and half of them received a booster. At 28\u2009days after the breakthrough COVID\u201019 diagnosis, 35 (20%) subjects required hospital admission. Out of those patients, seven (4%) died during the follow\u2010up due to the progression of COVID. Our results corroborate what has been established to date with regard to the positive clinical and safety outcomes of MOL in haematology patients with mild or moderate COVID\u201019.<\/jats:p>","DOI":"10.1002\/ijc.34442","type":"journal-article","created":{"date-parts":[[2023,1,24]],"date-time":"2023-01-24T08:59:31Z","timestamp":1674550771000},"page":"1251-1256","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Molnupiravir is effective in patients with haematological malignancies"],"prefix":"10.1002","volume":"153","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6629-8626","authenticated-orcid":false,"given":"\u0141ukasz","family":"Bo\u0142kun","sequence":"first","affiliation":[{"name":"Department of Hematology Medical University of Bialystok  Bia\u0142ystok Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bartosz","family":"Pula","sequence":"additional","affiliation":[{"name":"Department 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