temporaryl ull, Seasonal Woe, a matter of something

Researchers studying Covid-19 suggest summer could bring a temporary lull. Some predict that the disease would resurge in autumn.

WSJ.COM

Coronavirus Outbreaks Could Become Seasonal Woe, Some Researchers Suggest

As last year drew to a close, President Trump’s reelection prospects had never looked brighter. Coronavirus changed that within a matter of weeks.

lull

verb [ T ]

UK 

 /lʌl/ US 

 /lʌl/

 

to cause someone to feel calm or to feel that they want to sleep:

The motion of the car almost lulled her to sleep.

a matter of something

only; just:

In a matter of seconds, the building was in flames.