On May 5, 2014, it was announced John Krasinski would direct the film, with Krasinski, Anna Kendrick, Margo Martindale and Richard Jenkins joining the cast.
Epstein-Barr virus (EBV) is a ubiquitous herpesvirus spread by human contact with no know environmental reservoir. Antibodies are detected in 90 to 95% of adults worldwide. EBV infection is subclinical in 90% of children.
Epstein-Barr virus (EBV), a member of the herpes group, infects many normal individuals through the B lymphocytes. The data in Table 1 tends to confirm this, 31 of the patients (97%)had antibody titers suggestive of past infection with EBV.