CCR2 and infection: The BM egression of monocytes in steady-steady conditions and during emergency myelopoiesis in response to inflammation and/or infections, including Toxoplasma gondii and Listeria monocytogenes, has been reported to depend on CCR2 expression (Grainger et al., 2013; Serbina and Pamer, 2006; Serbina et al., 2009) and this has become an accepted dogma in the literature.