The flu is coming; here’s what you should know to protect yourself

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  • After a two-year pause during coronavirus, influenza has returned as social distancing restrictions relax
  • Here’s how to tell the difference between the flu, a cold and Covid and how you can take care of yourself
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It’s important to get a flu shot this year, because it’s coming back with a vengeance. Photo: Shutterstock

After a two-year break due to Covid-19, influenza seems to be coming back with a vengeance.

It’s difficult to predict just how bad a flu season might be, but we can typically take some clues from Earth’s southern hemisphere, which experiences its winter season in June, July and August. Australia is emerging from its worst flu season in five years, spelling trouble for countries where temperatures are just now dropping.

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This flu season is made all the more complicated by the still-spreading coronavirus. Experts expect that, just like in 2020 and 2021, Covid-19 cases will spike sometime during the holidays.

“It’s going to be a question of ‘What is the impact on the healthcare system,’” said Dr. James Cutrell, associate professor in the Department of Internal Medicine at UT Southwestern Medical Centre in Dallas, in the US state of Texas. “If you have clinics or hospitals that are dealing with lots of people who are coming in with both Covid and flu, that combination has the possibility of putting additional strains on the healthcare system.”

Social distancing and masks means we’ve kept most colds and flu outbreaks at bay over the last few years. Photo: Shutterstock

If both the flu and coronavirus spike at the same time, hospitals will be fighting the viruses simultaneously for the first time. And because spread of the flu was minimal during the pandemic, there’s less circulating immunity, said Dr Preeti Sharma, a paediatric pulmonologist at Children’s Health in Dallas.

Doctors are warning people not to take a lax approach to this flu season, even if it feels like a less severe threat compared to Covid-19.

“We’ve all sort of looked at Covid as the severe respiratory viral illness, but before Covid, influenza had that history of hospital admission and other complications in variable age groups, from infancy through the elderly,” Sharma said. “We know that the flu brings with it significant risk for complications.”

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Is it the flu, Covid-19 or a cold?

Symptoms associated with the flu, coronavirus and the common cold can look nearly identical.

All can come with congestion, cough, a sore throat, body aches and fever, although fevers tend to be lower with just a cold. The previously telltale sign of a Covid infection – loss of taste and smell – is now relatively uncommon with the Omicron variant, which is the dominant coronavirus strain in many countries.

Both the flu and Covid can also cause shortness of breath or difficulty breathing, and some patients experience gastrological symptoms, like nausea, vomiting and diarrhoea.

It can be hard to tell a cold apart from Covid or the flu. Photo: Shutterstock

Other viral illnesses are also beginning to spread, including respiratory syncytial virus, or RSV, which causes mild, cold-like symptoms for most people, but can be severe for infants and the elderly. RSV is the most common cause of pneumonia in children under 1 year old, according to the Centres for Disease Control and Prevention.

The only way to truly tell the difference between circulating viral infections is by getting tested, said Dr Joseph Chang, chief medical officer at Parkland Health in Texas. Regardless of the test result, people who are sick should stay home from work or school if possible.

“If you feel sick, you should be taking the same precautions, doesn’t matter if it’s Covid or it’s flu or it’s just a cold,” he said. “When you’re sick, you shouldn’t be around other people anyway because you’re going to get them sick.”

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Preventing wintertime illnesses

The best way to prevent yourself and others from getting the flu or Covid-19 is by getting vaccinated, said Dr Razaq Badamosi, medical director of the Division of Pulmonary and Critical Care Medicine at JPS Health Network in Fort Worth, also in Texas.

Both the flu shot and the Covid-19 vaccine are available for anyone older than 6 months. It’s safe to get both the flu shot and the Covid-19 shot on the same day.

“You can get them at the same time, if you want, though you’ll have two sore arms instead of one sore arm. That’s up to you,” Chang said.

Be sure to get a flu shot this year! Photo: Shutterstock

Doctors can prescribe antiviral medications to people with a Covid-19 or flu infection to lessen the severity of the illness.

Other public health measures like regular hand washing, masking and staying home when ill also help prevent viruses from spreading. Good health hygiene is a practice that parents can teach their children at an early age.

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“When your kid comes home from school, especially if there’s a little baby in the house, make sure they wash their hands before they give their little brother or sister a kiss. Teach them to cough into their elbow or sleeve and to wash their hands when they’re done coughing and sneezing,” said Dr Laura Romano, who also works at a hospital in Texas.

“And please, please, please keep them home if they’re sick.”

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