Virologist Leading international virologists agree to temporarily halt work on a more virulent strain of the H5N1 influenza virus, due to fears that an airborne strain of the lethal virus could be used by bioterrorists.
Håkan Juholt Håkan Juholt resigns as the head of the Swedish Social Democratic Party, after less than a year in the post.
A Republican Party primary election A Republican Party primary election takes place in the U.S. state of South Carolina, with Newt Gingrich being declared the winner and Mitt Romney coming second.
Pregnant Under new guidelines to come into force from April 30, clinics which charge for pregnancy services, including abortions, will be able to advertise on radio and television in the United Kingdom, after the Broadcast Committee of Advertising Practice ruled there was no justification for barring such clinics from advertising their services.
Sunk "Costa Concordia" disaster: The body of a woman is discovered by search teams aboard the stricken cruise ship "Costa Concordia", bringing the confirmed death toll of the ship's capsizing to 12. Rescue efforts continue apace, as it is feared the ship may soon slip into deeper waters off the Italian coast.
A series of co-ordinated bombing attacks The death toll of a series of co-ordinated bombing attacks in Kano, Nigeria, rises to more than 140. The attacks, which targeted police stations across the city, are attributed to Islamist group Boko Haram.