JOHANNESBURG—South Africa suspended giving Johnson & Johnson vaccine shots Tuesday as a “precautionary measure” and the company delayed its European vaccine rollout following an FDA decision to pause the jabs while very rare blood clot cases are examined. South Africa has given more than 289,000 doses of the J&J vaccine to the country’s health workers without any reports of rare blood clots, Health Minister Dr. Zweli Mkhize told reporters. He said South Africa was halting the use of J&J jabs “out of an abundance of caution” and expected that questions over the J&J vaccine should “be cleared within a matter of days.” Mkhize said “in the unlikely event” that the J&J vaccines are permanently halted, South Africa would continue with its vaccination campaign in May using doses from Pfizer-BioNTech. Earlier, Johnson & Johnson said it was delaying the rollout of its coronavirus vaccine across Europe amid the U.S. probe. The …