In Bangladesh, child labour is a fact of life: about 7.4 million children aged 5-17 arestimateded to work to support their families, or simply to survive.
The vaccine was estimated to work in just 3% of cases in lab tests, compared with a more typical past effectiveness of 50%, Public Health England PHEE) said.
Officially China's NDRC is home to 890 bureaucrats, but as many as 30,000 are estimated to work at its headquarters and branch offices.
Up to 20,000 children are estimated to work in the mines, around 90% of which are illegal, according to a recent report by NGOs Terre des Hommes and SOMO.
The vaccine was estimated to work in just 34% of cases in lab tests, compared with a more typical past effectiveness of 50%, due to genetic "drift" in the flu virus.
Most estimates put the number of sex workers in Spain at 300,000 – five times as many as are estimated to work in the UK – and, in a 2009 government survey, 39% of Spanish men said they had paid for sex.
There are around 10,500 Chinese restaurants and take-aways in Britain, and more than 70% of the 300,000-strong Chinese community is estimated to work in them or catering-related businesses.
Meanwhile there are so many cranes above Berlin's Potsdamer Platz that one local thespian has even written a ballet for them to perform to music.The reasons for this discrepancy include the 190,000 building workers from other European Union countries, and probably the same number of black-market workers, who are estimated to work on German building sites.
The device is estimated to work only 40% of the time and is unhealthy.
In fact, approximately 70% of heat pumps in Iceland (that are subsidized by the government) can be estimated to work under air-to-air conditions.
