Pharmaceutical stocks slid on Friday after US President-elect Donald Trump announced he was appointing Romert F. Kennedy Jrwho has in the recent past spread lies about vaccines, in the position of the country’s health minister.

Anti-vaccine activist Kennedy has been criticized for making false medical claims, such as that vaccines are linked to autism.

In the wake of Trump’s announcement, its shares AstraZeneca and French Sanofi are down more than 2%.

At the same time, the British GSK it also loses over 4%.

OR Sartoriusa major supplier of laboratory equipment, is down 3.8%.

OR Bavarian Nordicwhich makes a monkeypox vaccine, fell 16%, also affected by third-quarter results. The CEO of the Danish biotech company expressed concerns that Kennedy could fuel vaccine skepticism, but also told Reuters that the US response to the coronavirus pandemic during Trump’s first term makes him optimistic about the future government funding.

Its shares listed on the German stock exchange BioNtechPfizer’s partner in COVID-19 vaccines, are down 9.9%.

Jefferies analysts pointed to a Kennedy interview on NBC that it would not eliminate available vaccines, but added that the outlook for biotech development projects is bleak.

Meanwhile in the U.S., vaccine makers retreated further in premarket online trading after Thursday’s decline, with Modern to decline by 2.21%, the Novavax by 1.94% and the Pfizer to move marginally lower.

“We are not surprised that the pharmaceutical industry is under pressure to have Robert Kennedy Jr. oversee the various agencies within the US Department of Health and Human Services (HHS) (including the FDA, CDC, NIH and Medicare/Medicaid), given his views on the industry”JP Morgan analysts said, adding that it was too early to assess the exact impact.