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MDR-TB Treatment & Prevention

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Epidemiological clasification

Started by Alexandru Buga on 20 Jun 2012

Dear colleagues,
Does anybody know if exist an epidemiological classification of TB. For instance if the country has TB incidence 114 cases per 100 000 population, it is or not an epidemy?

Keywords: epidemy 

Replies (4) Add reply
1

Masoud Dara, MD

Dear Alexandru,

The thresholds are mainly set from the Regional perspective. In Europe we have less than 20 in 100,000 as a low incidence country. In WHO African Region, 200 in 100,000 is set as the threshold.

The other issue is that even at the national level of low incidence countries, there are sub population or districts which may have much higher incidence.

It would be good to hear what others think?

All the best.
Masoud

9:24 AM, 20 Jun 2012 | Permalink

2

Rajbir Singh

Dear Colleagues,

Another term commonly used 'High / low burden country'. How do we define it?
Regards,

Rajbir Singh
GLRA

10:35 PM, 20 Jun 2012 | Permalink

3

Masoud Dara, MD

Dear Dr Singh,

The high burden countries are the countries contributing to 80 percent of global TB cases (22 countries). This depends not only on TB incidence but also to the population size of the countries.

All the best,
Masoud

12:06 AM, 21 Jun 2012 | Permalink

4

Maxo Luma

Hi there,
To consider this as an epidemy, one has to take into account the background cases. For instance, during a time period X there were 3 cases of TB per 100.000 people and at different time period Y you observe a significant number of new cases. This would be considered as an outbreak.
Humbly,
Maxo

1:41 AM, 21 Jun 2012 | Permalink