CHENNAI: The number of fresh Covid-19 cases in Chennai is on the downslide in all zones except Royapuram in the last one week, show data released by the Greater Chennai Corporation.
A week-on-week comparison showed 13 zones in the city had a negative growth rate of fresh cases; that is the number of cases in these zones in the last one week was lower than in the previous week.
Royapuram alone showed a minor increase at 0.7%.
In neighbouring Thiru-vi-ka Nagar, the growth rate was at zero per cent.
The Chennai average itself is -5.5%.
The lowest growth rate is in Perungudi (zone 14) at 10.6% percent.
Eight of the 15 zones have a lower growth rate than the Chennai average (see graphic).
Correspondingly, in the last seven days, there has also been a significant fall in the number of active cases in the city.
On the whole, active cases have dropped from 38,680 to 24,290.
There has been a drop in all zones.
Currently, the maximum number of active cases is in Kodambakkam zone at 2,320 cases.
Anna Nagar comes a close second with 2,258 cases and Valasaravakkam is third with 2,154 cases.
Two other zones, Adyar (2093) and Teynampet (2076), have more than 2,000 active cases.
The lowest number of active cases is in Manali (452) and Tiruvottiyur (753).
These are the only zones that have less than 1,000 active cases.
However, the flip side is that Tiruvottiyur has a case fatality rate (CFR) of 1.6%, which is higher than the city average of 1.4%.
Thiru-vi-ka Nagar has the highest CFR at 1.9%, followed by Teynampet (1.8%), Kodambakkam (1.7%) and Anna Nagar (1.6%).
Anna Nagar, however, has the highest number of Covid-19 deaths in the city at 868, followed by Kodambakkam (862) and Teynampet (860).
Royapuram and Tondiarpet too have case fatality rate higher than the city average at 1.5%.