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To some extent, acute toxoplasmosis infections can be differentiated from chronic infections using an IgG avidity test, which is a variation on the ELISA. In the first response to infection, toxoplasma-specific IgG has a low affinity for the toxoplasma antigen; in the following weeks and month, IgG affinity for the antigen increases.
Drawbacks of this test: 1. Difficulty in maintaining the live tachyzoites. 2. It detects immunoglobulin G(IgG) antibodies, hence cannot differentiate between recent or past infection. 3.False positive for Sarcocystis, Trypanosoma lewisi, Trichomonas vaginalis [clarification needed]
Maternal IgG is able to pass through the placenta into the fetus and if the level of it is sufficient, it will cause destruction of D positive fetal red blood cells, leading to development of the anti-Rh type of hemolytic disease of the fetus and newborn (HDFN). Generally, HDFN becomes worse with each additional Rh incompatible pregnancy.
Dividing T. gondii parasites. Toxoplasma gondii (/ ˈ t ɒ k s ə ˌ p l æ z m ə ˈ ɡ ɒ n d i. aɪ,-iː /) is a species of parasitic alveolate that causes toxoplasmosis. [3] Found worldwide, T. gondii is capable of infecting virtually all warm-blooded animals, [4]: 1 but felids are the only known definitive hosts in which the parasite may undergo sexual reproduction.
Chronic or recurrent maternal infection during pregnancy is not thought to confer a risk of congenital toxoplasmosis because maternal immunity protects against fetal transmission. In contrast, pregnant women without serologic evidence of prior exposure to Toxoplasma should take sanitary precautions such as having someone else clean and maintain ...
Some vertically transmitted infections, such as toxoplasmosis and syphilis, can be effectively treated with antibiotics if the mother is diagnosed early in her pregnancy. Many viral vertically transmitted infections have no effective treatment, but some, notably rubella and varicella-zoster, can be prevented by vaccinating the mother prior to ...
GBS is an encapsulated gram-positive cocci that colonizes the gastrointestinal and genital tracts of pregnant women. Maternal infections are usually asymptomatic. This pathogen is vertically transmitted (transmitted directly from the mother's vagina into the infant's amniotic fluid after onset of labor).
TORCH syndrome is a cluster of symptoms caused by congenital infection with toxoplasmosis, rubella, cytomegalovirus, herpes simplex, and other organisms including syphilis, parvovirus, and Varicella zoster. [1] Zika virus is considered the most recent member of TORCH infections. [2]