Geneva  - United Nations agencies and other groups started a polio vaccine campaign Friday which aims to immunize 53 million children in West Africa over the course of the next month.

The vaccination campaign will take place in two rounds and will target eight countries, including Cote d'Ivoire, Ghana and Nigeria.

The large campaign, which has received funding from numerous donors including the Bill and Melinda Gates Foundation, was in response to a polio outbreak last year, which spread from northern Nigeria to six other nearby countries.

According to a new study if you want to lose weight it doesn't matter which diet you choose but what matters is how much or little you eat.

Recent study revealed that capsaicin, the compound that gives chili peppers their fiery flavor can also help in relieving joint and muscle pain. Study indicated that capsaicin flips on nerve-ending receptors that sense both pain and heat.

Lead researcher, Feng Qin, an associate professor at the university's School of Medicine and Biomedical Sciences, said: "The receptor acts like a gate to the neurons. When stimulated it opens, letting outside calcium enter the cells until the receptor shuts down, a process called desensitization."

The new Tobacco and Primary Medical Service (Scotland) Bill includes various plans to save future generations from clutches of smoking and smoking related diseases.

Under the new bill, cigarette vending machines and tobacco displays in shops would be banned. It also includes a registration scheme for retailers. It will also grant trading standards officers the power to fine retailers selling tobacco to under-18s.

Public health minister Shona Robison said that the health risks associated with smoking are both enormous and well documented advertisements.

An international research once again emphasized the importance of healthy living style in prevention of various types of cancer. Earlier studies have also shown importance of healthy diet and exercises on different types of cancer. Recent findings indicated that healthy diets, more exercise and controlling weight could also prevent more than 40 percent of colon and breast cancer cases in some countries.

Manufacturer Novartis recalled 21,000 doses of the meningitis C vaccine as a precautionary step.

Novartis said that it had discovered traces of Staphylococcus Aureus in the aluminium hydroxide solvent in which the vaccine is suspended, during tests on other vials - made at the same time - which had as an experiment been sent by air, rather than by road as they were to Britain. The Staphylococcus Aureus bacterium is associated with blood poisoning and skin infections.