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Pollution

and its effects on the environment
by

Serena Williams

on 7 May 2010

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Transcript of Pollution

Toxoplasmosis an infectious disease What is it? Toxoplasmosis is an infection due to the parasite Toxoplasma gondii



According to the CDC, some 60 million people in the United States could have toxoplasmosis



The time between exposure to the infection and symptom development is 1 - 2 weeks. The disease can affect the brain, lung, heart, eyes, or liver.

Enlarged lymph nodes in the head and neck
Headache
Mild illness with fever, similar to mononucleosis
Muscle pain
Sore throat

Confusion
Fever
Headache
Retinal inflammation that causes blurred vision
Seizures

Potential Symptoms What? 60 million? I've never even heard of it!
Well, how does it spread? -touching or coming into contact with infected cat feces


-eating raw or undercooked meet that's contaminated


-congenital toxoplasmosis (being born with it)






cats get the infection from eating infected rodents, birds, or other small animals ZOONOTIC


eating uncooked, unwashed fruits or vegetables that have been contaminated by nature FOOD BORN


a woman who gets a toxoplasmosis infection while pregnant may pass the parasite onto her unborn children through the bloodstream
Well, that's because:
(a) it can cause an infection with no symptoms
(b) or ones that are common to other illnesses. Symptoms in persons with otherwise healthy immune systems: Symptoms in immunosuppressed persons:
Infection doesn't normally spread from person to person except through pregnancy
in rare instances toxoplasmosis can contaminate blood transfusions and organs donated for transplantation Susceptible to.. Ocular disease: eye disease, eye lesions, retinochoridal scarring
-eye pain
-sensitivity to light (photophobia)
-tearing of the eyes
-blurred vision Persons with compromised immune systems may experience severe symptoms if infected with toxoplasma while immune suppressed.

ex: HIV infected person with Toxoplasmosis experiences more severe symptoms because immune system has trouble fighting off infection
Healthy people (nonpregnant)
-most recover from toxoplasmosis without treatment
-can be treated with a combination of drugs such as pyrimethamine and sulfadiazine, plus folinic acid

Pregnant women, newborns, and infants
-can be treated, although the parasite is not eliminated completely
-parasites can remain within tissue cells in a less active phase
-their location makes it difficult for the medication to completely eliminate them


Persons with ocular disease
-sometimes prescribed medicine to treat active disease by their ophthalmologist
-depends on the size of the eye lesion, the location, and the characteristics of the lesion (acute active, versus chronic not progressing).

Persons with compromised immune systems
-need to be treated until they have improvement in their condition
-For AIDS patients, continuation of medication for the rest of their lives may be necessary, or for as long as they are immunosuppressed
Treatments http://www.icyou.com/video-source/doctors-and-experts/histopathology-lymph-node-toxoplasmosis+
Full transcript