For how we live.
A phase 1 trial in 288 Chinese children found the experimental injectable vaccine well tolerated and able to raise antibodies. It measured immune response, not whether it prevents disease.
There is still no licensed Lyme vaccine. In a phase 2 trial of VLA15, a second yearly booster revived antibody levels against all six OspA serotypes, with more sore arms but no new safety signals.
As RTS,S reached more than 2 million children in Ghana, Kenya and Malawi, a WHO-coordinated pilot trained about 6,000 health workers to detect and report side-effects that most rollouts assume can already be caught.
Paediatric bodies advise formal autism screening at 18 and 24 months; a US task force found the evidence for universal screening merely insufficient, not against it. Large studies find no link to vaccines.
A 740,744-child natural experiment tested a decade-old hypothesis that rotavirus vaccine might prevent type 1 diabetes. It found no protective effect — and no evidence of harm either.