数か月で再感染

コロナ、4か月半で再感染した例が香港で報告される。

Some experts, though, said the news is not as bad as it sounds and that it is not cause for panic. For one thing, the patient did not have any symptoms in the second infection.

"This is interesting but not alarming," tweeted Ashish Jha, director of the Harvard Global Health Institute.

"First, this appears to be rare," he added. "Though we don't go looking often enough so unclear. Second, person was asymptomatic during the re-infection. This is exactly what one would want to see with immunity — that you can pick up virus again but that it won't cause serious illness."

もっとも、そんなに悲観することもないのではないか、と。

１）こうしたケースは稀　２）2度目は無症状

であれば、免疫の効果はあったのでは、と。