Examples of secondary infection in the following topics:
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- Secondary syphilis occurs approximately four to 10 weeks after the primary infection.
- The brain and spinal cord become infected with the syphilis bacterium, Treponema pallidum, during the secondary stage of infection and can remain latent for 10 to 20 years after the initial infection.
- Approximately 30 to 60 percent of those exposed to primary or secondary syphilis will get the disease.
- If adequate treatment is not administered, the infection progresses to the secondary stage.
- Dermatologic manifestations are the hallmark of secondary syphilis.
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- Secondary syphilis occurs approximately four to ten weeks after the primary infection.
- Many people who present with secondary syphilis (40–85% of women, 20–65% of men) do not report previously having had the classic chancre of primary syphilis.LatentLatent syphilis is defined as having serologic proof of infection without symptoms of disease.
- It is further described as either early (less than 1 year after secondary syphilis) or late (more than 1 year after secondary syphilis) in the United States.
- Without treatment, a third of infected people develop tertiary disease.
- Neurosyphilis refers to an infection involving the central nervous system.
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- Most cases of immunodeficiency are acquired ("secondary") but some people are born with defects in their immune system, or primary immunodeficiency.
- An immunocompromised person may be particularly vulnerable to opportunistic infections, in addition to normal infections that could affect everyone.
- A number of rare diseases feature a heightened susceptibility to infections from childhood onward.
- HIV directly infects a small number of T helper cells and also impairs other immune system responses indirectly.
- In the absence of specific treatment, around half the people infected with HIV develop AIDS within 10 years.
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- Leptospirosis is a rare and severe infection caused by Leptospira bacteria and usually transmitted to people from animals.
- Although rats, mice, and moles are important primary hosts, a wide range of other mammals (including dogs, deer, rabbits, hedgehogs, cows, sheep, raccoons, opossums, skunks, and certain marine mammals) are able to carry and transmit the disease as secondary hosts.
- Dogs may lick the urine of an infected animal off the grass or soil or drink from an infected puddle.
- Leptospirosis is also transmitted by the semen of infected animals.
- Humans become infected through contact with water, food, or soil containing urine from these infected animals.
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- Most cases of immunodeficiency are acquired (secondary) but some people are born with a defective immune system, or primary immunodeficiency.
- An immunocompromised person may be particularly susceptible to opportunistic infections, as well as normal infections affecting the general population .
- T-cell deficiency is often caused secondary disorders such as acquired immune deficiency syndrome.
- A number of rare diseases feature a heightened susceptibility to infections from childhood onward.
- The term immunodeficiency generally refers solely to the adverse effect of increased risk for infection.
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- Lymphogranuloma venereum (LGV) is a sexually transmitted disease which causes an infection of the lymph nodes.
- LGV is an infection of the lymph nodes.
- In the primary stage, symptoms appear within days after infection.
- The first symptom is usually painless ulcers at the contact area.The secondary stage can manifest from days to months later.
- Prognosis is best if treatment starts early in the infection process.
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- These supplies and facilities are often exposed to contaminated water that contains infected snails.
- These infect freshwater snails by penetrating their skin.
- This contains germ cells which will divide to produce secondary sporocysts.
- In turn, these migrate to the snails' hepatopancreas and the germ cells, now present within the secondary sporocysts, will divide to form thousands of new parasites called cercariae.
- These are the larvae capable of infecting mammals.
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- Immunological memory allows the adaptive immune system to very rapidly clear infections that it has encountered before.
- This is known as the secondary immune response.
- This rapid and dramatic antibody response may stop the infection before it can even become established.
- When exposed to the corresponding pathogen to which an individual was vaccinated, the reaction is similar to a secondary exposure.
- In the primary response to infection, antibodies are secreted first from plasma cells.
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- Plants defend against pathogens with barriers, secondary metabolites, and antimicrobial compounds.
- Secondary metabolites are compounds that are not directly derived from photosynthesis and are not necessary for respiration or plant growth and development.
- In addition to secondary metabolites, plants produce antimicrobial chemicals, antimicrobial proteins, and antimicrobial enzymes that are able to fight the pathogens.
- A hypersensitive response, in which the plant experiences rapid cell death to fight off the infection, can be initiated by the plant; or it may use endophyte assistance: the roots release chemicals that attract other beneficial bacteria to fight the infection.
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- ASBV is the smallest known viroid that infects plants and is transmitted by pollen and infected seeds or budwood.
- Trees infected with the viroid often show no symptoms other than a reduction in yield.
- Their secondary structure is key to their biological activity.
- ASBV is the smallest known viroid that infects plants and is transmitted by pollen and infected seeds or budwood.
- black - secondary structure of the viroid red - GAAAC sequence common to all viroids yellow - central conservative sequence blue - nucleotide numbers