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Syphilis (/ ˈ s ɪ f ə l ɪ s /) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. [1] The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary.
An infectious disease agent can be transmitted in two ways: as horizontal disease agent transmission from one individual to another in the same generation (peers in the same age group) [3] by either direct contact (licking, touching, biting), or indirect contact through air – cough or sneeze (vectors or fomites that allow the transmission of the agent causing the disease without physical ...
Penicillin is the most commonly used antibiotic to treat syphilis. Other options may be used if you are allergic to penicillin, or your doctor may recommend a regimen that will allow your body to ...
A human pathogen is a pathogen (microbe or microorganism such as a virus, bacterium, prion, or fungus) that causes disease in humans.. The human physiological defense against common pathogens (such as Pneumocystis) is mainly the responsibility of the immune system with help by some of the body's normal microbiota.
Primary pathogens cause disease as a result of their presence or activity within the normal, healthy host, and their intrinsic virulence (the severity of the disease they cause) is, in part, a necessary consequence of their need to reproduce and spread. Many of the most common primary pathogens of humans only infect humans, however, many ...
[1] [3] Treatment is usually with ceftriaxone by injection and azithromycin by mouth. [4] [5] Resistance has developed to many previously used antibiotics and higher doses of ceftriaxone are occasionally required. [4] [5] Retesting is recommended three months after treatment. [3] Sexual partners from the last two months should also be offered ...
The case fatality rate for this illness—spread by ticks and the tissue of infected animals during and after slaughter—is around 30%. Most patients who die do so in the second week of illness.
A blood-borne disease is a disease that can be spread through contamination by blood and other body fluids. Blood can contain pathogens of various types, chief among which are microorganisms , like bacteria and parasites , and non-living infectious agents such as viruses .