Covid-19 infection are likely to be protected from reinfection for at least six months, but according to a study published on Wednesday, that protection drops dramatically for people over the age of 65.According to The Hill, The study -- which was published in The Lancet titled 'Assessment of protection against reinfection with SARS-CoV-2 among 4 million PCR-tested individuals in Denmark in 2020: a population-level observational study' -- found that protection in the general population to be 80 per cent or higher in those younger than 65, but approximately 47 per cent in those aged 65 years and older, meaning they were more likely to be infected again.Also Read | Why India needs to look east at Taiwan"We found protection in the population.