Some diseases that are spread through direct contact with body fluids have little to no symptoms when the host is first infected. This benefits the pathogen because the pathogen can activate antiseptics to increase the likelihood of being passed on to another host the pathogen can only start spreading once symptoms appear, so the pathogen has more time to cause severe symptoms the host can seek treatment as soon as they are first infected by the pathogen, which means that symptoms may not have a chance to develop the host may pass on the pathogen to others because they do not know that they are infected