The immune system has many weapons with which to counter hostile incomers. But what works against one may not be effective against another. An interloper can take advantage of this by misdirecting the system into thinking it is fighting an enemy that it is not. Mammalian immune systems have two modes of attack. Type-1 is used against bacteria and viruses; type-2 against multicellular parasites such as worms. Some invading bacteria, however, provoke a type-2 response when type-1 would be appropriate. Dr Medzhitov decided to take a closer look. Why has bacteria infections become so rampant nowadays ?

Previous Article

customer-business chat WhatsApp feature

Next Article

online politics