According to several studies that have been conducted on individuals who have had Covid, it is believed that immunity from the virus may last for at least 3-6 months. This is based off of the presence of antibodies in these individuals which provides protection against the virus. However, it is still unclear as to how long this protection lasts and if it decreases over time. Additionally, it is unknown if reinfection with Covid is possible after someone has already had it and developed immunity. More research needs to be done in this area in order to determine a more definitive answer.