The novel coronavirus, known as SARS-CoV-2, has been a cause of global concern since its emergence in late 2019. Infectious disease experts are still learning about the virus, including how long immunity lasts after a person has been infected with it. This article will discuss the risk of reinfection with the virus and the timing of reinfection.
Risk of Reinfection
The risk of reinfection with SARS-CoV-2 is not yet fully understood. However, some studies suggest that a person can be infected with the virus more than once. For example, a study of healthcare workers in South Korea found that nearly 6% of those who tested positive for SARS-CoV-2 had been reinfected within a six-month period.
In addition, a study of mice infected with SARS-CoV-2 suggested that the virus can cause immunity in some individuals, while others may be susceptible to reinfection. While the exact risk of reinfection is unknown, the World Health Organization (WHO) currently recommends that people who have had the virus take precautions to avoid getting it again.
Timing of Reinfection
The timing of reinfection with SARS-CoV-2 is also unclear. Some studies suggest that reinfection can occur within a few weeks of the first infection. For example, a study of healthcare workers in South Korea found that the average time between the first and second infections was 23 days.
However, other studies have suggested that reinfection can occur much later. For example, a study of healthcare workers in the United States found that the average time between the first and second infections was 144 days.
Overall, the risk of reinfection with SARS-CoV-2 is unknown, and the timing of reinfection can vary from person to person. It is important for people who have had the virus to take precautions to avoid getting it again.
