No hope for herd immunity following antibodies survey, scientist says

MOSCOW, May 28. /TASS/.
MOSCOW, May 28. /TASS/.
PYONGYANG, May 29. /TASS/.
PYONGYANG, May 29. /TASS/.
PYONGYANG, May 29. /TASS/.
PYONGYANG, May 29. /TASS/.
PYONGYANG, May 29. /TASS/.
MOSCOW, May 28. /TASS/.
MOSCOW, May 28. /TASS/.
MOSCOW, May 28. /TASS/.
MOSCOW, May 28. /TASS/.