Valneva Reports Strong Phase III Chikungunya Vaccine Data After Merck’s Exit from Race
French company Valneva has released positive results from a Phase III study of its chikungunya vaccine candidate VLA1553, following Merck's exit from the race earlier this year. The vaccine showed a 28-day seroprotection rate of 98.9% in participants given the inoculation, according to results published in medical journal The Lancet. However, more than half of those vaccinated developed at least..