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World
Herz — World Desk · · 30s summary · 3 min read
In Australia, increasing numbers of parents are refusing vitamin K injections for their newborns, fueled by misinformation spread by influencers on TikTok and Instagram. In Queensland, the vaccination rate has fallen from 98.3% in 2016 to 95.5% in 2025, leaving more than 2,500 babies unprotected. Without vitamin K, newborns face the risk of vitamin K deficiency bleeding—a rare but potentially fatal hemorrhagic disorder. Danielle McMullen, president of the Australian Medical Association, identifies online misinformation as "probably the main cause" of parental refusals.
In Australia, an increasing number of parents are refusing vitamin K injections for their newborns. According to ABC News Australia, this trend is fueled by misinformation spread by influencers on TikTok and Instagram.
Vitamin K does not cross the placenta and is present in only very small quantities in breast milk. Newborns are therefore particularly vulnerable to deficiency, especially during the first eight weeks of life.
Without the injection at birth, babies risk developing vitamin K deficiency bleeding—a rare but potentially fatal hemorrhagic disorder. This condition affects approximately 1 baby per 100,000.
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Among online content circulating, an account with nearly 38,000 followers describes vitamin K as a 'deadly weapon.' Another person claiming to be a midwife asserts a link between the injection and leukemia.
Social media misinformation is probably the main cause of parental concerns about vitamin K.
— Danielle McMullen, president of the Australian Medical Association, cited by ABC News Australia
In April 2026, Robert F. Kennedy Jr., U.S. Health Secretary, refused during a hearing of the Health Subcommittee of the Energy and Commerce Committee to recommend vitamin K injection for newborns.
His position drew heavy criticism during the hearing.
Available data cover Queensland and Tasmania. The situation in other Australian states and territories is not specified in the available sources.
No verified institutional definitions were available in the provided sources for the pediatric surveillance organization cited (Australian Pediatric Surveillance Unit) or for the U.S. parliamentary subcommittee mentioned (Energy and Commerce Health Subcommittee).
Vitamin K does not cross the placenta and is only minimally present in breast milk. Without the injection, babies—especially in the first eight weeks—risk serious internal bleeding or potentially fatal brain hemorrhage.
It is rare: about 1 in 100,000 babies are affected. In Australia, 58 cases were documented over 24 years (1993–2017), resulting in 6 deaths, all from brain hemorrhages.
Intramuscular vitamin K injection has been used routinely since the 1960s. According to the Australian Medical Association, only one potential allergic reaction has ever been reported during this entire period.
Influencers on TikTok and Instagram are spreading medically unfounded claims, including that vitamin K is a 'deadly weapon' or linked to leukemia. The AMA identifies this misinformation as the probable primary cause of these refusals.
In April 2026, Robert F. Kennedy Jr., U.S. Health Secretary, refused to recommend vitamin K injections for newborns during a parliamentary hearing, drawing sharp criticism.