A lot of things, such as no having regular exercise, eating unhealthily, not getting enough sleep, etc.
particels
Opportunistic infection
Opportunistic Infection
A vaccine works on the principle of stimulating the host's innate immune system. As such, a weakened form of a bacteria/virus is introduced and the body's reaction to it allows it to then fend off any later exposure to the full-strength form.
your body produces antigens to fight against the pathogens and imune you agaist diseases.
The host doesnt show symptoms and the carrier does
A host that allows you to write in PHP
What does the term "Graft versus host disease" mean? Immunologic reaction involving the attack of host cells by donor immune cells.
The victim of disease or parasites is called the "host" (host organism).
If a host has been infected with a pathogen then theoretically they are a carrier as the infection could spread to others
The cyst stage when they can survive harsh conditions outside a host allows for the transmission from one host to another.
Blood transfusion graft-vs.-host disease affects mostly the blood.
they can irritate the skin and disease the "host".