A 6.1-magnitude earthquake occurred on the northern Philippines island of Luzon on April 22, killing at least five people. The quake was centered near the city of Lubao, near the capital, Manila. Two buildings were reported to have collapsed, and Clark International Airport was damaged.

On April 23, a 6.5-magnitude quake occurred near the town of San Julian, on the eastern side of the island of Samar, killing 11 people. Samar is roughly 600 miles southeast of Luzon.

After months of civilian pro-democracy protests, the Sudanese military removed president Omar al-Bashir from office on April 11 in a bloodless coup, declaring that they would oversee a 2-year transition period. Al-Bashir had been president of the country for 30 years.

Though initially celebratory, pro-democracy groups then began to protest military rule, causing the military’s leader to voluntarily step down and appoint a more moderate officer in his stead.

Protests in...

Due to a worldwide increase in the number of measles infections, the Centers for Disease Control (CDC) recommended that anyone who received an inactivated (killed) measles vaccine in the years 1963 through 1967 be reinoculated, since that vaccine may have been ineffective.

Anyone born before 1957 is presumed to be effectively immune, since a person born before that year was likely infected by and survived the disease.