Tropical disease transmitted by worms on verge of being curbed

Schistosomiasis, a parasitic infection that causes high fevers, is chronic and can be fatal, has prompted researchers to come up with better detection methods and an expected vaccine. By  VITTORIA D’ALESSIO A disease caused by parasitic worms has long blighted the lives of millions of people in tropical and subtropical countries including Burkina Faso and Madagascar. … Read more

Ancient chickens, cows and pigs may hold secrets to modern animal diseases

Sequencing DNA offers hope of explaining changes to farm animals and helping combat their present-day maladies. By  ANTHONY KING The dubious winners of the agricultural revolution, by sheer numbers, are obvious. Living in the world today are 30 billion chickens, 1 billion cows and almost 800 million pigs. While the dawn of agriculture was 8 000 … Read more

Time to take laughter seriously

While people the world over enjoy a good laugh, remarkably little is known about this instinctive behaviour. By Ali Jones Before babies can talk or walk, they can laugh. An infant’s first giggle at around four months enchants and reinvigorates even the most weary parent and, from then on, it’s a lifelong tool for communicating … Read more