Monday, September 1, 2008

Why is isolation and identification of Mycobacterium tuberculosis so difficult

Why is isolation and identification of Mycobacterium tuberculosis so difficult? ?
Why is isolation and identification of Mycobacterium tuberculosis so difficult? ? I looked for this in my micro book but I can't find anything about it. It just says that it is gram positive and tells about the PPD test. I also looked for this on the internet but can't really find what I need.
Biology - 1 Answers
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1 :
they are extremely hard to isolate and grow (fours weeks on an agar plate) which makes the use of diagnostic test almost impossible. here is a paper that may help. http://findarticles.com/p/articles/mi_qa3890/is_/ai_n8910811

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Thursday, August 28, 2008

What are the origins of tuberculosis

What are the origins of tuberculosis?
What part of the world did tuberculosis come from? Did it spread from animals to humans? If so, during what time period?
Respiratory Diseases - 1 Answers
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Human tuberculosis is a very ancient disease, said Cristina Gutierrez of the Pasteur Institute, referred to in the Old Testament and found in Egyptian and Peruvian mummies. The bacterium Mycobacterium tuberculosis, the causative bacterium, has been found only in humans. The disease spreads directly between people through the air. The rare tuberculosis-causing bacteria that grow in smooth cultures are genetically very distinct from one another and from the classic tuberculosis cluster, and probably derive from a common "prototuberculosis" species that arose about three million years ago. That is assuming you believe in carbon dating .

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Sunday, August 24, 2008

I used to have tuberculosis. It was treated and not infectious. Can I get a residence visa if I work in Dubai

I used to have tuberculosis. It was treated and not infectious. Can I get a residence visa if I work in Dubai?
As I have said, the tuberculosis is minimal and treated for six (06) months. I have the previous film and the sputum test result(sputum Culture) which is negative result. I will visit Dubai using Visit Visa and visit visa transfered to Residence visa I need to undergo medical exam that is why I still have doubt even it is treated. I hope you can clear me on this.Thanks.
Infectious Diseases - 2 Answers
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1 :
Call the Dubai consulate closest to your area and ask them. You will probably have to have a health certificate from a doctor.
2 :
If you had scarring in your lungs due to the previous Tb infection, it will most probably show on your xrays. However, Tb which has been treated appropriately should not be grounds for denying residency. just don't know how strict the medical authorities are in Dubai

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