The total cases include 301 people who took part in a religious congregation in Nizamuddin last month.
Till Friday night, the number of cases of the deadly virus stood at 386 in the city, including six deaths.
Among the fresh cases, 42 were from the Nizamuddin Markaz, the department said in a statement.
Of the total cases, 15 have been discharged and one has migrated out of the country.
In an online briefing on Wednesday, Chief Minister Arvind Kejriwal said 536 people were admitted to hospitals and 1,810 sent to quarantine facilities from the Nizamuddin area, where the religious congregation took place.
According to the health department, 58 of the total cases were people who had travelled abroad, 40 of them had come in contact with affected persons and 301 came from the Markaj (centre) in the Nizamuddin area.
Over 2,000 delegates, including from Indonesia and Malaysia, attended the Tablighi Jamaat congregation in Nizamuddin West from March 1-15, officials said on Monday as the south Delhi neighbourhood was virtually sealed off earlier following fears that some of the attendees may have contracted COVID-19.
The civic authorities have carried out mass sanitisation and a disinfection drive in Nizamuddin over the last few days, using drones and other measures.
According to the Delhi health department, of the total 445 cases recorded so far, 423 are admitted at various hospitals, including LNJP Hospital, GTB Hospital, RML Hospital, Safdarjung Hospital, Rajiv Gandhi Super Speciality Hospital (RGSSH) and AIIMS, Jhajjhar.
The total number of COVID-19 samples sent for testing stood at 3,694 till date and the results of 445 were positive, the department said.
As many as 3,531 people were kept in quarantine at various government facilities, it added.
A total of 22,794 people, who had come in contact with affected persons, were under home quarantine and 4,196 had completed their 14-day quarantine, the department said.
The number of ventilators at the disposal of the Delhi government stood at 243, while the figures for PPE kits and sanitisers were 3,261 and 22,366 respectively, it had said on Thursday.
Nizamuddin Markaz attendees to add to COVID-19 patient count in Delhi
As of now, there are 445 cases in Delhi.
Citing the reason behind increase in the number of patients Kejriwal said, “A total of 2,300 people were evacuated from the Nizamuddin Markaz. Of these, 500 had symptoms of coronavirus. Some had cough while some had fever and other symptoms. Since all of them were admitted to the hospitals and have been tested while reports are expected in two-three days, therefore, we can expect surge in the number of positive cases in the capital.”
He said the coronavirus cases in Delhi are increasing because of Markaz only but still community transmission has not started here.
1,800 people of Markaz have been quarantined and are been screened.
All these will be kept under medical supervision for the next 14 days.
Chief Minister said, “Delhi had to suffer because of coronavirus infected people who came from abroad and people of Markaz.”
Get answer to your basic coronavirus questions
Arvind Kejriwal released a video on Twitter to annouce the launch of “Corona WhatsApp Helpline” to answer some of your basic questions. Send a message to +91 88000 07722. Kejriwal also announced that the helpline be updated regularly to add more features
We have launched a Corona WhatsApp Helpline to answer some of your basic questions. Send a message to +91 88000 07722 What else would you like to see in this helpline? We will keep adding more features pic.twitter.com/vd61KLHXSz
— Arvind Kejriwal (@ArvindKejriwal) April 3, 2020