The current pandemic has not over yet, the Japanese Ministry of Health confirmed that four Brazilians were positive for Covid-19 with a new variant when they entered Japan recently. However, there is no evidence that this variant has a high transmission rate.
“Currently there is no evidence to suggest that those from Brazil have a high transmission rate,” said the head of the Japan Institute of Infectious Diseases, Takaji Wakita, quoted by CNBC International.
The four Brazilians arrived at Haneda Airport, Japan on January 2. The local Health Ministry explained that all of them showed different symptoms of Covid-19.
There was a man in his forties who had breathing problems and a woman in his thirties with a headache and sore throat. Then there are teenage boys who have fever and finally teenage girls without any symptoms at all.
Previously, the world was preoccupied with the discovery of two new variants of the corona virus. One spread in Britain and the second spread in South Africa. The variant found in Britain was said to be 70% more contagious than the previous variant.
Some countries even decided to close flights to and from the UK.
Meanwhile, an official at the Ministry also said Japan was conducting research on the vaccine’s efficacy against the new variant.
Previous preliminary research in the United States found the Pfizer-BioNTech vaccine to be effective against new variants from South Africa and the UK. However, this research has not been further reviewed and is still limited.
It’s been reported that the Pfizer vaccine can neutralize it with mutations, protein spikes. The research was conducted by Pfizer with a team of researchers from the Medical Branch.
With these preliminary findings, Pfizer increased the effectiveness of 15 other mutations that had been tested previously.
“Now we’ve tested 16 different mutations and none of them have a significant impact,” said co-author from Pfizer, Phil Dormitzer.