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Audrey Labarde (Université Paris-Saclay, France) and colleagues published a paper in PNAS on temporal compartmentalization of viral infection in bacterial cells. They showed that infection of Bacillus subtilis by phage SPP1 hijacks host replication proteins to assemble hybrid viral–bacterial 'replisomes'. They show that the phage restructures the crowded host cytoplasm to confine, at different cellular locations, the sequential processes essential for its multiplication.