BILL COSBY

NORRISTOWN, Pennsylvania — A judge refuses to throw out the sexual-assault case against Bill Cosby, sweeping aside a former district attorney's claim that he granted the comedian immunity from prosecution a decade ago. 

PRESIDENTIAL RACE

GOFFSTOWN, New Hampshire — Donald Trump and Ted Cruz cast aside any veneer of kindness on Wednesday to trade insults and accusations in a show of hardball politics that demonstrated the stakes for both men in the New Hampshire primary six days away. 

HOARDING ZIKA

RIO DE JANEIRO — Brazil isn't sharing enough samples and disease data to let researchers determine whether the Zika virus is, as feared, linked to the increased number of babies born with microcephaly in the South American country, experts say. 

ZIKA VIRUS-BEHIND THE CAMERA

BONITO, Brazil — AP photographer Felipe Dana, reacquainting with a mother whose child has microcephaly, finds a sad and troubled household where the baby screams much of the time and shows signs of disabilities that will require constant care in the years ahead.

ZIKA VIRUS-SEX

NEW YORK — A sexually transmitted case of Zika in Texas has scientists scrambling to understand how much of a risk infection through sex is for the usually mosquito-spread illness. 

SHKRELI ARREST

NEW YORK — Bad-boy ex-pharmaceutical company CEO and prolific social media user Martin Shkreli has been muzzled. A new lawyer in a federal securities fraud case against Shkreli tells reporters outside court that his client would stop speaking out in his own defense until the charges are resolved.

WARMING OCEAN-FISH

PORTLAND, Maine — Fish and shellfish that humans rely on for food and that are important to the economy are on a list of Northeastern marine species considered most vulnerable to climate change, a federal government report.