LACEY — When her daughter was born at Providence St. Peter Hospital in January, the first thing Maria Rios checked was the baby’s head.
She’d seen the terrifying photos on the internet — infants in Brazil and in Puerto Rico whose skulls were misshapen, even collapsed, ravaged by the Zika virus that has engulfed Latin America.
Days earlier, doctors had told Rios — a 20-year-old, first-time mother — that she was infected with Zika, likely spread by a mosquito bite when she and her husband were living last summer at her parents’ home in Colima, Mexico.
• Zika is spread mostly by the bite of an infected Aedes species mosquito.
• Zika can be passed…