wire insulation stripping machine，wire insulation stripping machine，wire insulation stripping machine，wire insulation stripping machine，Australia's Olympic track and field members received the "all-clear" after isolating out of precaution following a US athlete testing positive for Covid-19.The members have now been "cleared to return to their regular routines after earlier isolating in their rooms as a precautionary measure," Australia's Olympic Committee (AOC) said in a statement.Three members of the team took PCR tests after "brief casual contact" with the unnamed US track and field member who tested positive.While the AOC did not name the American athlete, men’s pole vaulter Sam Kendricks tested positive for Covid-19 earlier Thursday."The three, who are all vaccinated, self-reported once they heard news of the US athlete testing positive late this morning," the AOC said."All daily tests of the trio in the village had also returned negative results."Fifty-four members of the team isolated in their room for two hours while the three members tested and were later given permission to leave.“Once again, abundant caution and our strict protocols continue to keep the team safe," Australian Olympic Team Chief de Mission Ian Chesterman said."We will continue to be very thorough in our observance of the Tokyo playbooks and our own additional measures."