There will be no briefing on Covid-19 on Friday, the Health Ministry said in a statement.
The daily briefings by Deputy Minister for Civil Protection Nikos Hardalias and infectious diseases specialist Sotiris Tsiodras will resume Saturday at the regular time of 6 p.m.
Greece's death toll from the novel coronavirus currently stands at 140.
Greek Education Minister Niki Kerameus will present details on a government plan to gradually reopen schools on Wednesday, the ministry said.
Kerameus will take part in the daily press briefing of Health Ministry spokesperson for the pandemic Sotiris Tsiodras and Deputy Civil Protection Minister Nikos Hardalias, at 6 p.m.
Greek Health Ministry spokesman Sotiris Tsiodras on Monday announced 17 new coronavirus infections, bringing the total to 2,534, adding that two more patients have died, pushing the death toll to 136.
Tsiodras added that 43 people are currently being treated in intensive care units after contracting the virus (average age is 67), while 65 have left ICU.
An Athens prosecutor launched an investigation on Thursday into whether criminal charges should be brought against the management of a private clinic in Peristeri, western Athens, after 37 people - 20 patients and 17 health professionals - tested positive for Covid-19, with three subsequently dying.
Greek Deputy Civil Protection Minister Nikos Hardalias on Friday called on Muslim citizens celebrating Ramadan to pray at home, as part of the efforts to contain the spread of the novel coronavirus.
Speaking at the daily press briefing, he reiterated that mosques will hold prayer services during the religious month without public attendance.
About 30 new coronavirus cases were reported at a private clinic in Peristeri in western Athens on Thursday.
Tests were conducted after a patient came down with symptoms similar to coronavirus.
Health Ministry spokesman Sotiris Tsiodras and Deputy Civil Protection Minister Nikos Hardalias visited the clinic Thursday.
One hundred and seventy-seven residents from the small town of Kranidi, southern Greece, who were tested for the novel coronavirus came back negative, according to state-run broadcaster ERT on Thursday morning.
The tests wre ordered by health authorities after they discovered a cluster of coronavirus infections at a local facility housing refugees earlier this week.