Four of them are from China. Work has even begun on a plant capable of producing 100 million doses a year. Sinovacs vaccine is among the three experimental COVID-19 vaccines China has been using to inoculate hundreds of thousands of people under an emergency use program. Worldwide, there are at least 10 experimental coronavirus vaccines in late-stage clinical trials, according to the World Health Organization. Pfizers vaccine, developed in partnership with Germanys BioNTech SE, is undergoing late-stage tests involving 3,100 volunteers in Sao Paulo and Bahia states.
Subsequently, all of these 3100 volunteers are from the Philippines.
( z0 be-from :ARG1 ( z1 person :quant 3100 :ARG0-of ( z2 volunteer ) :mod ( z3 this ) :mod ( z4 all ) ) :ARG2 ( z5 country :name ( z6 name :op "Philippines" ) ) :time ( z7 subsequent ) )
(z0 / be-from-91
    :ARG1 (z1 / person
              :quant 3100
              :ARG0-of (z2 / volunteer-01)
              :mod (z3 / this)
              :mod (z4 / all))
    :ARG2 (z5 / country
              :name (z6 / name
                        :op1 "Philippines"))
    :time (z7 / subsequent))
Subsequently , all of these 3100 volunteers are from the Philippines .
z1 :quant 0
z1 :mod z3
z1 :mod z4
z1 :ARG0-of z2
z0 :ARG1 z1
z0 :time z7
z0 :ARG2 z5
z5 :name z6
z6 :op1 1