The new strain was named lambda and was initially detected in Chile, Peru, Argentina, and Ecuador at the end of 2020. Scientists believe that it differs from other strains by mutations in the spike protein, which affects the degree of contagion. However, at the moment there is no data that the virus can provoke a more severe course of COVID-19.
The main symptoms also do not differ from other strains. Scientists attribute to them an increase in temperature, a continuous cough, loss of smell and taste. The strain has not yet been added to the list of “causes of concern,” which is formed by the WHO.
At the moment, this list includes alpha, beta, gamma, and delta strains. At the end of June, it was reported that 20 cases of infection with a new strain of coronavirus were detected in the Indian state of Maharashtra, which was given the name “delta plus.” The new variant of the virus is characterized by the presence of the K417N mutation in the spike protein, which can reduce the activity of antibodies in people who have been ill and vaccinated.