Between March 19 and March 25, there were 117 cases giving a seven day rate of 77.7, down substantially from 88.3 yesterday.
Derry Strabane is now posting the second highest COVID-19 rate in the north.
Mid Ulster is recording the highest prevalence. The rate there jumped significantly from 84.7 yesterday to 102.4 today.
Fermanagh and Omagh (26.5), Causeway Coast and Glens (35.4), Antrim and Newtownabbey (37.1), Mid and East Antrim (38.2), Newry, Mourne and Down (47.7), Lisburn and Castlereagh (48.2), Armagh City, Banbridge and Craigavon (49.6), Belfast (53.3) and Ards and North Down (75.2) all have lower rates than Derry/Strabane.
The daily change in the cumulative number of patients with a positive test in Derry and Strabane between March 24 and March 25 was 15.
In total 11,505 people have now tested positive for the illness in Derry and Strabane.
In total 88,469 vaccine doses have now been administered at the three mass vaccination centres in Derry, Omagh and Enniskillen.
Across the north GPs have rolled out 377,136 jabs.