What is the meaning of "rare brain blood clots sent scientists~" in the following sentences,
Denmark, which halted using the AstraZeneca vaccine on March 11, was among more than a dozen countries that temporarily paused use of the vaccine after a small number of reports of cases of rare brain blood clots sent scientists and governments scrambling to determine any link.
? (Source: COPENHAGEN (Reuters) : Denmark reports two cases of serious illness, including one death, after AstraZeneca shot By Jacob Gronholt-Pedersen )
Does "rare brain blood clots sent~" mean "a small number of reports of cases of rare brain blood clots were sent by scientists and governments scrambling to determine any link" ?
Or Does "rare brain blood clots sent~" mean "a small number of reports of cases of rare brain blood clots were sent and scientists and governments scrambling rare brain blood clots to determine any link"?