“The Delta variant results in a much higher viral load in infected persons — there are more viral particles in the nose and airways. This means that there is a higher amount of virus being spread,” Dr. Sandra Adams, a professor of biology and virologist at Montclair State University, told NJ.com. “Because of this, the risk of transmission outdoors is likely greater.” Cancel the country music festival in Wildwood. This is why the vaccinated must comply with the CDC recommendation for wearing masks and not rely on their vaccinations against the highly contagious delta variant.