Between April 12 and April 18, there were 166 cases giving a seven day rate of 110.2 cases, up from 106.2 yesterday.
Derry Strabane has the highest COVID-19 rate in the north - five times the rate in Ards and North Down (22.4).
Ards and North Down (22.4), Lisburn and Castlereagh (25.5), Fermanagh and Omagh (25.7), Mid and East Antrim (29.6), Belfast (31.4), Armagh City, Banbridge and Craigavon (34.2), Antrim and Newtownabbey (36.6), Causeway Coast and Glens (36.7), Newry, Mourne and Down (54.4) and Mid Ulster (56.9) all have lower rates than Derry/Strabane.
The average rate for the north is now 41.2.
The daily change in the cumulative number of patients with a positive test in Derry and Strabane between April 17 and April 18 was 20.
In total 12,026 people have now tested positive for the illness in Derry and Strabane.
In total 115,712 vaccine doses have now been administered at the three mass vaccination centres in Derry, Omagh and Enniskillen.
Across the north GPs have rolled out 484,160 jabs. In total 1,137,331 vaccines have now been administered at PHA centres and by GPs in the six counties.