We conducted a review of literature for studies concerning main addictions and COVID-19 on August 6th, 2020. We focused on each of the following substances: alcohol, tobacco, cannabis, opiates, cocaine/crack, and gambling. We used all the names of the severe acute respiratory syndrome of coronavirus 2 (SARS-CoV2 previously 2019 nCoV) and the name of the coronavirus disease 2019, namely COVID-19 (Testino and Pellicano, 2020). An electronic search was conducted in Medline (PubMed interface), using the MESH (Medical Subject Headings) search terms (“coronavirus 2019” OR “COVID-19” OR “2019-nCoV” OR “SARS-CoV-2”) AND “substance use” OR “SUD” OR “tobacco smoking” OR “cigarette “OR ‘smoking’ OR ‘nicotine’/‘alcohol’/‘cannabis’ OR ‘THC’/”opiates” OR “opioid”; between 2019 and the present time (i.e., June 4, 2020), with language restriction (English or French). The title, abstract and full text of all documents were scrutinized and selected if relevant. The reference list of the identified studies was also analyzed for detecting other potentially eligible articles.
