新冠疫苗:加强针要一直打下去吗?
为什么有些传染病的疫苗接种一次可以终生免疫,而有些则需要经常补加强针?
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/seasidecambodia/public_html/application/config/config.php
Line: 338
Function: DB
File: /home2/seasidecambodia/public_html/index.php
Line: 325
Function: require_once