突破性感染:为什么新冠康复后还会二次感染?
全球疫苗接种持续推进,病毒变异不止,局部疫情反复,一个曾经令人关注的问题重新露面——为什么会重复感染?什么是突破性感染?
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