The phrase "a severe outbreak of" is correct and usable in written English.
It can be used when discussing a significant occurrence of a disease or phenomenon, typically in a medical or environmental context.
Example: "The region is currently facing a severe outbreak of influenza, leading to increased hospitalizations."
Alternatives: "a major surge of" or "a significant rise in".
However, a severe outbreak of BVDV type 2 on several dairy farms, induced by contaminated gE-deleted marker vaccine, was a drawback that illustrated the potential risks with the use of live vaccines [ 3].
During a severe outbreak of influenza in an average year 36,000 Americans die.
Be warned: may cause a severe outbreak of dinophilia among middle-grade readers.
The lake had a severe outbreak of blue-green algae in May 2007 that was linked to pollution.
Last winter, Vogue suffered a severe outbreak of feather and fur gilets after a senior member of the fashion team debuted hers.
The vaccines provide no protection against other viruses that are circulating simultaneously, such as a new form of norovirus and a severe outbreak of whooping cough.
The analysis is performed for all completed outbreaks and for a scenario where these are augmented by a more severe outbreak of several thousand cases.
Even reassortments in the same lineage can cause a severe outbreak and failure of vaccine coverage.
If you are experiencing a widespread, severe outbreak of HSV sores, you may need to be admitted to a hospital for intravenous medication and professional topical treatment of your blisters.
Besides, Bruce was clearly prey to exterior issues that did not effect Grant – not least a slight case of Fems (Future England Manager Syndrome, an affliction that has torpedoed the careers of men from Trevor Francis to Aidy Boothroyd) and a more severe outbreak of PSSAC (Possible Successor To Sir Alex Complaint, which has likewise had an enervating effect on Roy Keane and Mark Hughes).
A particularly severe outbreak of malaria struck the ship in early February 1804; 212 members of Bellerophons crew fell ill. 17 died aboard the ship, while 100 had to be transferred to a shore-based hospital, where a further 40 died.
