In 5 charts: How vaccines have performed in first 'real-world test' against Delta variant
![In 5 charts: How vaccines have performed in first 'real-world test' against Delta variant](https://static.toiimg.com/thumb/msid-84315561,width-1070,height-580,imgsize-694648,resizemode-75,overlay-toi_sw,pt-32,y_pad-40/photo.jpg)
Severity: 8192
Message: Creation of dynamic property CI_DB_mysqli_driver::$failover is deprecated
Filename: database/DB_driver.php
Line Number: 371
Backtrace:
File: /home2/bharatch/public_html/gkpro.in/application/config/config.php
Line: 541
Function: DB
File: /home2/bharatch/public_html/gkpro.in/index.php
Line: 325
Function: require_once