First you have to understand that what makes covid-19 so dangerous is that it slowly grows stronger and spreads in your body for upto 2 weeks. Before causing symptoms that are severe. By the time you notice or it's diagnosed, You are already in the danger zone. This virus already spread enough to make it very hard for treatment to help. So it's important to keep your immune system under control so it can do it's job, but without over doing it's job. most causes of fatal outcomes of covid-19 is because your immune system tried to hard to fight the virus. So adding Vitamin D, Vitamin C, Zinc to your daily diet will not only improve your general health, But also work to reduce covid-19 spread in the body and untreatable covid-19 caused symptoms.
Common Sources for Vitamin D, Vitamin C, Zinc: Eggs (Zinc) Milk (Vitamin D) Green Tea Arizona (Vitamin C Fortified/Antioxadant)
Covid-19 Environmental Solutions
It's not enough to improve your health and immune system, But to also improve your environment. Specifically your home. You want to make sure each room in your home has an air purifier system that can clean the air of any water droplets that may contain Covid-19 or any other virus. Doing this will reduce even the common cold from being common. You also want to have hand sanitizer in every area. Make sure to keep surfaces disinfected.
Wearing mask when going outside since you have less control of outside environment. Think of a mask as an umbrella for your nose and mouth. It's no different then wearing a winter coat when it snows. People wear scarfs in weather for a reason, so wearing a mask serves the same purpose. One of the ways to deal with covid-19 is not to get it. Don't let covid-19 enter your body. Social distancing can help with that.
Influenza (Flu)
I use orange juice, hand sanitizer and sleep as my main way to deal with sicknesses like The Flu. But i also keep eating eggs and drinking milk for vitamin D. Make sure to use an air purifier indoors and wear mask with filter.
Omnicron Variant has more mutation then previous covid-19 variants. but it's still a virus. so any method that catches and destroys viruses still useful against this variant. using Zinc, Vitamin C, And Vitamin D in your daily diet will keep you healthy against this variant as well. If there is any new issue that is caused by this variant we will find a solution for it. preferably a natural method.