Yolanda Foster made a shocking comparison on Monday.

The 52-year-old compared the disease she suffers from to HIV during at an event in Sydney, according to News.Com.AU.

'We all pull together so beautifully for HIV,' the reality star began. 'Lyme is three times more prevalent right now, it’s a world-wide epidemic, the first case was diagnosed in 1972… yet we haven’t done anything about it.'

Yolanda Hadid compared the disease she suffers from to HIV during at an event in Sydney on Monday (pictured at a Global Lyme Alliance event in New York last month)

While HIV-AIDS has claimed an estimated 35 million lives globally, in the United States the Center For Disease Control estimates Lyme Disease has accounted for 114 deaths from 1999 to 2003.

Dr Brad McKay told AU that the comparison is a longshot: 'If HIV isn’t treated, people die. If Lyme Disease isn’t treated, then people can feel unwell for a very long time.'

Meanwhile, the beauty, who's been battling the debilitating ailment the past few years, continues sharing shots from the exotic locales she's frequented, including one of herself kneeling alongside a kangaroo in Sydney, Australia on Monday.

Land down under: Yolanda, 52, shared a shot from her current trip to Sydney, Australia, amid her recent revelation she's in remission from Lyme Disease

All around the world: The Dutch beauty has chronicled her global journey on Instagram

A moment like this: Foster celebrated a visually exhilarating trip to California's Mount Shasta, telling her followers, via a hashtag, she's living 'life in remission'

She wrote, 'Breakfast with this precious Aussie Mate....... #LifeIsGood #Sydney #AustralianBeauty.'

The Dutch-born model on Sunday uploaded a shot of her view from a plane, writing: 'It's not until you have the courage to close one door that a new one opens.......... #NextChapter #Awareness #Sydney.'

On her recent travels, the mother-of-three has also visited California's Mount Shasta, where she uploaded a number of visually enchanting shots, including one of her from behind, with her arms raised in triumph and her hands making peace signs.

Good vibes: The mother-of-three (left) said she's on a 'spiritual adventure' in this shot with three pals posted earlier this week

Turning over a new leaf: In the past 12 months, Yolanda has seen major life changes, including the end of her marriage to composer David Foster and leaving the Real Housewives of Beverly Hills cast

'Lost my mind but found my soul,' Foster wrote, along with the telling hashtag '#LifeInRemission.'

Foster - who has been candid in sharing her most vulnerable moments during her medical treatments - also uploaded an exhilarating shot of lush green pine tress in the Northern California resort area.

The spiritual stunner wrote, 'There is no Wifi in the forest but you will find a much better connection............'

Leafing through life: The blonde beauty is clearly at one with nature in these shots she shared

Yolanda was previously wed to real estate mogul Mohamed Hadid from 1994 until 2000, with whom she has three kids, all professional models: Gigi, 21, Bella, 20 and Anwar, 17. She was also married to music composer David Foster from November 2011 until December 2015.

This past summer, the resilient beauty - citing her health and privacy - left the Bravo reality show. She said in a June 15 statement, 'I believe that every exit is an new entry and with that in mind I say goodbye to my @Bravotv Family as I continue to focus on a full recovery and bring back the privacy within our home.'

Yolanda will share more details of her struggle with Lyme Disease in her upcoming memoir, Believe Me: My Battle With The Invisible Disability Of Lyme Disease, due out next year.