Scientists, health authorities, heads of state and regular vaccine recipients have long been hoping that they will provide longer-lasting protection against the virus.
Now it turns out that vaccines, on the contrary, provide less protection than initially expected.
Especially new mutations affect the immunity of vaccines to infection.
Even after major vaccine manufacturers adapted vaccines to new virus variants. There are many indications that the effect of vaccines wears off relatively quickly.
The risk of infection was much higher with early immunization
New Israeli Research. Research results indicate a possible relative decrease in long-term protection against the Delta variant. Israelis who were vaccinated in January and February are 53 percent more likely to test positive than those who were vaccinated in March and April. We found that the risk of infection was significantly higher in those vaccinated earlier than in those vaccinated later . This preliminary finding should promote further long-term protection against different strains and potential clinical trials to investigate the effects of a booster vaccine on infection, the study concluded in one conclusion.
Fully vaccinated non-immune
Among the findings is that those vaccinated in January had a significantly greater risk of infection than those vaccinated in April.
58 percent of Israelis are now fully vaccinated. About 250 received the third dose. Nevertheless, in a country of 000 million, the infection continues to grow, and more and more become seriously ill and need to be hospitalized.
In light of the recent surge in infections among vaccinated people, there is growing concern as to whether the effect of the vaccine is reduced in particular against the Delta strain, which now dominates Israel and much of the world.
Therefore, the Israeli health authorities are considering introducing a new closure by the end of the month.
Now it turns out that the effect of the vaccination is short-lived
The Israeli infectious disease physician Eyal Leshem approaches the new study as follows:
- Previously, it was thought that the vaccine would have a long-lasting effect. Now it turns out that the effect is short-lived - says Lesheim to. He thinks a third dose will be needed as a result. Additional dosages should be prioritized for the elderly and other risk groups, not for children.
the protection of the vaccine decreases rapidly
There are now 650 new infections in Israel every day, and more than half of those infected have already been fully vaccinated, showing just how aggressive the Delta variant is.
