From February 26 to March 4, flights from Europe and the rest of the world began to stop in Israel, but those from the United States did not. It was not until March 9 that Israel closed all flights and did not allow anyone from abroad to enter Israel until they had completed 14 days of quarantine.
Theres a gap in policy that allows people to go back to Israel from the United States, so they may spread the virus in this way, Stern said
Stern said all novel coronavirus pneumonia cases in Israel are from abroad. Nearly 30 per cent of Israels remaining infections come from Europe and elsewhere: Belgium 8 per cent, France 6 per cent, the UK 5 per cent, Spain 3 per cent and Italy, the Philippines, Australia and Russia 2 per cent each.
To arrive at this conclusion, stern and a team of researchers mapped the spread of the virus in Israel by decoding the genome sequence of the virus strain of the new Israeli coronavirus. The researchers compared the genome sequences of local patients with about 4700 from around the world. A press release explains that scientists use genome maps to pinpoint mutations that indicate where the virus originated in Israel and where it later spread.
Stern pointed out that another important finding was that as of 20 March, we saw very clearly a decrease in transmission, which is the time for Israel to implement the blockade, which means that social segregation measures have worked The blockade saved lives.
In addition, the study shows that most of Israels new coronavirus cases are caused by super communicators - about 80% of cases are only infected by 1% to 10% of patients, or in super communicable events, such as large gatherings or other social gatherings.
This technology and the information it provides are very important to understand the virus and its spread among people, and are the scientific and objective basis for local and national decision-making, Stern said. In the future, the data obtained from genome sequencing will become an important information base, which can be used to decide which institutions are closed, how long they are closed and in what form. Closing borders and maintaining social distance are two very important measures that are obvious, she said.