TY - JOUR AU - Henry, Marc AU - Summa, Mireille AU - Patrick, Louis AU - Schwartz, Laurent PY - 2020/03/30 Y2 - 2024/03/29 TI - A cohort of cancer patients with no reported cases of SARS-CoV-2 infection: the possible preventive role of Methylene Blue JF - Substantia JA - Substantia VL - 4 IS - 1 SE - Covid-19 Emergency Open Stream Contribution DO - 10.13128/Substantia-888 UR - https://riviste.fupress.net/index.php/subs/article/view/888 SP - 888 AB - <p>We report the case of a cohort of 2500 French patients treated among others with methylene blue for cancer care. During the COVID-19 epidemics none of them developed influenza-like illness. Albeit this lack of infection might be by chance alone, it is possible that methylene blue might have a preventive effect for COVID-19 infection. This is in line with the antiviral activity of Chloroquine, a Methylene blue derivative. Both Chloroquine and Methylene blue have strong antiviral and anti- inflammatory properties probably linked to the change in intracellular pH and redox state.</p> ER -