Since we already know that the antibodies individuals develop following a coronavirus an infection appear to wane with time, there’s a great probability that any coronavirus vaccine would must be administered repeatedly, maybe yearly, to offer sufficient safety. Not like the flu, Covid-19 has proven no proof of getting a season. Whether or not the climate is sizzling, chilly, dry or moist, this coronavirus is extremely infectious. However just like the flu, it spreads readily from individual to individual, and might be transmitted even earlier than these contaminated know they’re contagious in addition to by those that are contaminated and don’t develop into noticeably sick.
One other reality value noting: the flu vaccine doesn’t and can’t trigger the flu. Some individuals could get a feverish response to a flu shot, however which will characterize partly the physique’s effort to muster an immune response. Or, as Dr. Osterholm identified, those that get the flu inside a couple of days of being immunized may very well have one other respiratory bug or could have already been contaminated with the flu virus after they obtained the shot. Flu viruses sometimes have an incubation interval of 1 to 4 days earlier than signs develop, and it takes about two weeks for the vaccine to develop into absolutely protecting.
Nevertheless, even when individuals do get the flu after being correctly immunized, the sickness is prone to be considerably much less extreme. This may increasingly even be the case with a coronavirus vaccine.
Consultants are at present most nervous a few possible confluence this winter of a flu epidemic and a still-raging Covid-19 pandemic, which might simply overwhelm the medical care system and create anew a scarcity of hospital beds and private protecting tools. Pneumonia is a not-uncommon complication of the flu that would add to the burden of hospitalizations wanted for individuals with a life-threatening coronavirus an infection.
The consultants are additionally involved about individuals who develop the flu and, pondering it may very well be Covid-19, search medical care and a take a look at that would inadvertently expose them to this dreaded virus in addition to trigger a scarcity of exams. Each illnesses can produce similar symptoms: fever, cough, shortness of breath and fatigue that may be excessive.
One other worrisome chance is that individuals who get the flu is likely to be much more inclined to contracting the coronavirus and to creating extreme illness.
Even discounting an elevated danger of Covid-19, the problems of flu might be critical. They embrace bacterial pneumonia, ear infections, sinus infections, and a worsening of power medical circumstances like bronchial asthma, diabetes and congestive coronary heart failure. Others at elevated danger of significant flu-related problems embrace individuals 65 and older, pregnant girls and kids youthful than 5.