Charlbi Dean’s cause of death was determined by a New York City medical examiner.
The Triangle of sadness actress –– whose full name is Charlbi Dean Kriek –– died of an unexpected and sudden illness in August. He was 32 years old.
At the moment, the disease has not been disclosed.
A spokesperson for the New York City office of the Chief Medical Examiner’s Office confirmed to PEOPLE on Wednesday that she died of bacterial sepsis.
The sepsis “was a complication of asplenia (the absence of a spleen) due to ‘remote blunt trauma to the torso,'” the spokesperson told PEOPLE.
The South African actress’s death was ruled an accident.
Vittorio Zunino Celotto/Getty
Her bacterial sepsis was caused after she was infected with a bacterium known as Capnocytophaga. While the infection is rare, there are several species of Capnocytophaga that develop in the mouths of humans and are also found in the mouths of cats and dogs, according to the CDC. People with autoimmune problems and no spleen are particularly susceptible.
It’s unclear whether an animal bite or lick was responsible for the model’s infections as the coroner has not released her full autopsy.
RELATED: ‘Triangle of Sadness’ director calls actress Charlbi Dean’s sudden death at 32 a ‘tragedy’
Lionel Hahn/Getty Charlbi Dean
RELATED: Charlbi Dean’s boyfriend Luke Volker speaks out after his sudden death at 32
Days after his death, Dean’s brother Alex Jacobs said Rolling stone that her sudden death in New York City on Monday came after she began experiencing “minor” symptoms and soon asked her boyfriend, Luke Volker, to rush her to the emergency room. She died a few hours later.
“This literally happened within the span of a day: having a headache, going to sleep, waking up her boyfriend and saying please take me to the hospital,” Jacobs said Rolling stone.
“We’re not entirely sure yet [what happened]“Jacobs added at the time. “There is an ongoing autopsy that we know could take some time. But what we have heard [that] there was a viral infection in his lungs.”
Jacob said Rolling stone that Dean was in a “very, very bad car accident” circa 2009, after which doctors removed her spleen. She also suffered broken ribs and a broken back in the crash, according to her brother.
“[The spleen is] involved in fighting infections, and that may have had something to do with what happened,” Jacobs said.
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Volker also mourned her boyfriend’s death on Instagram in a short video to show appreciation for the messages she received following the news.
“Hi everyone. I just wanted to post a picture of Charlbi, but it’s a bit difficult,” began Volker, 26. For real. It’s just that I can’t really respond to them right now. But thanks, guys. I appreciate it. I love you. “
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Triangle of sadness Writer/director Ruben Östlund also grieved Dean in an Instagram post, saying it was “an honor to have known and worked with her” before the “tragedy”.
She added: “Charlbi had a caring and sensitivity that lifted his colleagues and the entire film crew. The thought that he will not be by our side in the future makes me very sad. In this difficult time, my thoughts go to her loved ones, her family and her boyfriend Luke”.