Frank Cook signed the February 2009 Early Day Motion 754: MMR Vaccine and the Media supporting the use of the MMR vaccine. The motion expressed disappointment with the reporting of the vaccine by Jeni Barnett on her LBC radio show in January 2009, and expressed the hope that future reporting of the issue of MMR would be less sensationalist and more evidence-based.
Animals in Medical Research
In 2006, Frank Cook signed Early Day Motion 1850: Animals in Medical Research which noted that "animal research is only permitted where there is no better alternative and that pain and suffering are minimised and balanced against the potential benefit to humans and animals", supported "the building of the new state of the art biomedical research laboratory at Oxford University", condemned "unlawful animal rights extremism, including any violence, harassment or intimidation of those associated with lawful animal research", and supported "the well-regulated use of animals in medical research".
In March 2010, following the publication of the House of Commons Science and Technology Committee's report "Evidence Check 2: Homeopathy", Frank Cook signed Early Day Motion 908: Science and Technology Committee Report on Homeopathy, which was critical of the report.
In February 2010, Frank Cook signed Early Day Motion 524: Recognising Climate Change which states that "this House agrees that climate change is happening and is man-made" and calls this statement a "fact, which has the support of the overwhelming majority of the scientific community".
Libel Law Reform
In February 2010, Frank Cook signed Early Day Motion 423 calling for a reform of the English libel law. The motion noted that human rights activists, scientists, writers and journalists are currently prevented from publishing, and the public prevented from reading, matters of strong public interest due to the chilling effect of the law.