#covid19

Unmoderated tag

chirieleison (53)in #science • 4 days ago
Natural Immunity Can Exist Prior to SARS-COV-2 Infection
Healthy people have pre-existing T-helper cell and cytotoxic T-cell immunity to the SARS-Coronavirus prior to…
$0.01
Pending payout amount: $0.01
Breakdown:
    0.00 SBD,
    0.05 STEEM,
    0.05 SP
Payout in 3 days
(amount must reach $0.02 for payout)
2 0