The most typical general symptoms were asthenia and sleepiness: a proportion which range from 1/3rd up to half from the respondents reported at least among both of these symptoms, with an increased proportion following the second dosage

The most typical general symptoms were asthenia and sleepiness: a proportion which range from 1/3rd up to half from the respondents reported at least among both of these symptoms, with an increased proportion following the second dosage. the serological titer