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  2. Virus - Wikipedia

    en.wikipedia.org/wiki/Virus

    A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.

  3. Hemagglutination assay - Wikipedia

    en.wikipedia.org/wiki/Hemagglutination_assay

    The HI assay is generally performed by creating a dilution series of antiserum across the rows of a 96-well microtiter plate. Each row would usually be a different sample. A standardized amount of virus or bacteria is added to each well, and the mixture is allowed to incubate at room temperature for 30 minutes.

  4. Multiplicity of infection - Wikipedia

    en.wikipedia.org/wiki/Multiplicity_of_infection

    In microbiology, the multiplicity of infection or MOI is the ratio of agents (e.g. phage or more generally virus, bacteria) to infection targets (e.g. cell ). For example, when referring to a group of cells inoculated with virus particles, the MOI is the ratio of the number of virus particles to the number of target cells present in a defined ...

  5. Syphilis - Wikipedia

    en.wikipedia.org/wiki/Syphilis

    Syphilis ( / ˈsɪfəlɪs /) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. [1] The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and tertiary). [1] [2] The primary stage classically presents with a single chancre (a firm ...

  6. Laboratory diagnosis of viral infections - Wikipedia

    en.wikipedia.org/wiki/Laboratory_diagnosis_of...

    Electron microscopy is a method that can take a picture of a whole virus and can reveal its shape and structure. It is not typically used as a routine diagnostic test as it requires a highly specialized type of sample preparation, microscope and technical expertise. However, electron microscopy is highly versatile due to its ability to analyze ...

  7. Host–pathogen interaction - Wikipedia

    en.wikipedia.org/wiki/Host–pathogen_interaction

    The host–pathogen interaction is defined as how microbes or viruses sustain themselves within host organisms on a molecular, cellular, organismal or population level. This term is most commonly used to refer to disease -causing microorganisms although they may not cause illness in all hosts. [1] Because of this, the definition has been ...

  8. Pathogen transmission - Wikipedia

    en.wikipedia.org/wiki/Pathogen_transmission

    Pathogen transmission. In medicine, public health, and biology, transmission is the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group, regardless of whether the other individual was previously infected. [1] The term strictly refers to the transmission of ...

  9. Chlamydia - Wikipedia

    en.wikipedia.org/wiki/Chlamydia

    Chlamydial infection of the cervix (neck of the womb) is a sexually transmitted infection which has no symptoms for around 70% of women infected. The infection can be passed through vaginal, anal, oral, or manual sex. Of those who have an asymptomatic infection that is not detected by their doctor, approximately half will develop pelvic ...

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