The phrase "a sharp resurgence" is correct and usable in written English.
It can be used to describe a sudden and significant increase or return of something, such as a trend, behavior, or phenomenon.
Example: "After several years of decline, there was a sharp resurgence in interest for vintage fashion among young adults."
Alternatives: "a sudden revival" or "a significant comeback".
The liberal campaign organization "Aide-toi, le ciel t'aidera" ("God helps those who help themselves") coordinated the opposition's preparations for the elections of 1827, which brought a sharp resurgence of liberal and moderate strength and led to Villèle's downfall.
Sarkeesian has tweeted regularly about receiving violent threats since even before she began her video blog series in 2012, but harassment against her and other women in the industry gained momentum this summer and underwent a sharp resurgence this week.
The DRC has witnessed a sharp resurgence of polio as conditions in the country continue to complicate vaccination efforts, potentially undermining global eradication of the crippling disease.
That is a sharp rise from 2011, pointing to a resurgence of a powerful organized crime organization, the First Capital Command, or P.C.C., as the group is known by its Portuguese initials.
That is a sharp increase from 2005 and 2006, and the resurgence of the pathogen raises questions about whether the Agriculture Department has given the meat industry too much leeway to police itself.
Intelligent design theory may be regarded as a resurgence of the vitalist mindset in that it too posits a sharp line of demarcation between living and nonliving via its "irreducible complexity" clause.
The rise of Nazism in the early 1930s again saw a resurgence in Friedrich's popularity, but this was followed by a sharp decline as his paintings were, by association with the Nazi movement, misinterpreted as having a nationalistic aspect.
And now this week's warning from Public Health England that a sharp rise in the level of vitamin D deficiency – the sunlight vitamin – among children has led to a resurgence in infant rickets, a condition associated with Victorian slums.
Health officials say a sharp increase in the number of syphilis cases in the city indicates an increase in unsafe sex, which they fear may lead to a resurgence in H.I.V. transmission.
