BURLINGTON, Vt. (AP) — A 70-year-old woman accused of manufacturing the deadly toxin ricin and testing it on fellow residents at a Vermont retirement community has pleaded not guilty.

Accidental exposure to ricin, which is found in castor beans, is unlikely, according to the Centers for Disease Control and Prevention. "It would take a deliberate act to make ricin and use it to ...

Saaem, who has a doctorate in biomedical engineering and lived in Massachusetts at the time, in 2015 ordered 100 packets, each containing eight seeds, of castor beans online, according to the U.S ...

The earliest symptoms of castor bean poisoning appear within a day or so of ingestion. Often, the first sign is vomiting or diarrhea, sometimes with blood in the stool.

A woman suspected of sending a letter containing the poison ricin to President Donald Trump was arrested as she tried to enter the US from Canada at a border crossing in New York state, a US law ...

Ricin, a poison found in castor beans, has been found in a package sent to President Donald Trump – the latest example of the natural and deadly toxin being investigated by authorities.

Dr. Ishtiaq Ali Saaem, 37, who has a doctorate in biomedical engineering, allegedly tried to extract the toxin from 100 packets of castor beans that he ordered, according to the US Attorney’s ...

Ricin, according to the Centers for Disease Control and Prevention (CDC), is a poison that's naturally found in castor beans. It can be found in the form of a powder, mist or pellet and can be ...

The cupboard above the stove in Betty Miller’s retirement apartment contained bottles labeled “apple seed,” “cherry seed,” “castor beans,” and “ricin,” the FBI says.

The shell of castor bean seeds is highly toxic and can be used to create the poison. According to German tabloid newspaper Bild, the man was using an ISIS guide of how to create a ricin bomb.

Ricin is not the only byproduct of castor beans. Castor oil has several uses in manufacturing, food supply, and pharmaceuticals, and is easily attainable.