Baby dies of meningitis after a deadly kiss

Mariana Sifrit, an infant girl who contracted viral meningitis caused by HSV-1 when she was less than a week old, died Tuesday, her mother posted on Facebook.

HSV-1 is the same herpes virus that causes cold sores, and only rarely does it lead to viral meningitis, which causes the tissue covering the brain and spinal cord to become enflamed, according to the US Centers for Disease Control and Prevention.

It is believed that baby Mariana contracted the deadly virus from a kiss. Mariana's parents, Nicole and Shane Sifrit, both tested negative for the virus, they told CNN affiliate WHO.

Just 18 days old when she died, Mariana had spent her last week at the University of Iowa Children's Hospital in Iowa City, suffering from severe medical complications.

A week after Mariana's July 1 birth, her parents married. Within two hours of the ceremony, though, the newlyweds noticed that their newborn was not eating and would not wake up, they told WHO.

"She had quit breathing, and all her organs just started to fail," Nicole Sifrit told WHO. Early symptoms of viral meningitis may include fever, light sensitivity, headache and a stiff neck, according to Johns Hopkins Medicine.

The newlyweds rushed Mariana to Blank Children's Hospital in Des Moines, Iowa, where they learned that she had contracted meningitis HSV-1, which can be carried by someone with the virus even if they do not have an open sore.

Her mother told WHO she could not pinpoint exactly how Mariana caught the virus.

Babies younger than 1 month and people with weakened immune systems are more likely to develop severe illness when diagnosed with viral meningitis, according to the CDC, which advises parents to be particularly careful during the first months of a baby's life.