RT @gjknoops: https://t.co/ROGvCOXk6T
#RIVM 20 april;"onduidelijk of virus via druppelwolken vanuit mensen zonder klachten verspreidt. Is n…
RT @gjknoops: https://t.co/ROGvCOXk6T
#RIVM April 20; "unclear or virus through droplet cloud spreading from people without symptoms Is N ....
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