Letter to the editor: Is malaria re-emerging in southern Europe? Cryptic Plasmodium falciparum malaria in Malta, October 2018 Medialdea-Carrera, Raquel and Melillo, Tanya and Gauci, Charmaine and Rocco, Graziella and Borg, Maria Louise, Eurosurveillance, 23, 1800650 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.50.1800650