The second component of the coronavirus vaccine strengthens the effect and helps the formation of stronger immunity. Alexander Gorelov, deputy director for scientific work of the Central Research Institute of Epidemiology of Rospotrebnadzor, spoke about this.
According to the expert, the second injection is mandatory, otherwise the vaccinated person will negate the effectiveness of the first injection and jeopardize his health.
“After the first dose, antibodies are produced that form humoral immunity against SARS-CoV-2, but it is not persistent, it lasts for a couple of months,” RIA Novosti quotes Gorelov. – To consolidate success, a second dose is needed, which is needed for the formation of T-cell immunity, it is they that provide reliable protection against infection.
The specialist recalled that two-component vaccination was used before, for example, two injections were always administered to protect against tick-borne encephalitis, and three injections against hepatitis B.
Note that 1,695 people are currently in Volgograd hospitals, including 1,452 patients with confirmed coronavirus. In general, since the beginning of the pandemic, 57.3 thousand cases of coronavirus have been registered in the Volgograd region.
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