Los Angeles Times:

As the latest coronavirus surge fades, health officials are keeping watch on a new mishmash of the Delta and Omicron variants.

Dubbed “Deltacron” by some, it’s essentially a blend of both the variants that fueled last summer’s and this winter’s COVID-19 waves.

But this coronavirus crossover event isn’t setting off blaring alarm bells among health officials just yet as only a handful of cases have been documented nationwide.

生词短语：

mishmash

混杂物

variant

变种; 变体

blend

混合品; 混合物

dub

授予称号

crossover

跨界;混合

blaring

发出(响亮而刺耳的声音)