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ANALYSIS: Where (and how) are Germany’s Delta variant Covid-19 infections spreading?

The share of Delta variant Covid infections in Germany among new cases is going up. But where are they being detected and what do experts think about it?

ANALYSIS: Where (and how) are Germany's Delta variant Covid-19 infections spreading?
A sign for a vaccination station in Weimar. Photo: picture alliance/dpa/dpa-Zentralbild | Bodo Schackow

What’s the latest?

Although Covid rates in Germany have been going down, the proportion of the Delta variant first detected in India (B.1.617.2) is growing significantly.

Analysis by the Robert Koch Institute (RKI) found the share of the Delta variant almost doubled within a week – and it now accounts for about 15 percent of new Covid infections nationwide.

READ ALSO: Share of Delta variant Covid cases in Germany almost doubles in a week

Chancellor Angela Merkel on Thursday said Europe needed to remain “vigilant”. 

“In particular the newly arising variants, especially now the Delta variant, are a warning for us to continue to be careful,” said Merkel in the Bundestag.

Health Minister Jens Spahn (CDU) urged people to be cautious.

“I appeal to all travellers to inform themselves carefully about the incidence of infection, to accept test offers and to take the quarantine obligations seriously,” Spahn told the Handelsblatt newspaper.

Asked if people could book their vacations without worry despite the Delta variant, he said, “In principle, yes. However, it looks different for countries that are already heavily affected by the delta variant.” There, he said, the risk of contracting the virus and bringing it home is much higher. A vacation summer should not be followed by an “autumn of worry”, he said. 

The tweet below by German data journalist Olaf Gersemann shows how the proportion of the Delta variant has increased in Germany, particularly in the last three weeks. 

Where are Delta infections happening?

The Alpha variant (B.1.1.7), which was discovered in the UK, still dominates the incidence of infection in Germany, but its share of positive cases in the sample has now shrunk to 74 percent after weeks of hovering around 90 percent. As before, the proportions of Beta (discovered in South Africa) and Gamma (discovered in Brazil), which are also variants of concern, are very low.

Delta has been detected in all German states in the past four weeks, RKI data shows. Information from the reporting system was available for around 1,440 cases during this period. The absolute number of weekly Delta cases has increased since the 21st calendar week (May 24th), from about 270 to about 470 in the 23rd reporting week.

The map below by the RKI represents the number of reported Delta cases (suspected or detected) per district transmitted to the RKI from around the end of May to mid-June. 

As The Local has been reporting, some areas have detected a surge in Delta cases. In Hesse, it already accounts for more than 20 percent of new infections.

READ ALSO: ‘Vaccinate quickly’: German states see surge in Delta variant cases

According to the RKI, the majority of infections are taking place in Germany rather than connected to travel. Most transmissions have happened in private households, and there have also been larger outbreaks involving more than five people in workplaces and schools with up to 24 people.

The most frequently cited countries in connection with introductions from the Delta variant are Afghanistan (19 cases), Russia (16) and Italy (14).

About nine out of 10 people infected with Delta are under the age of 60, according to the report, and this age group accounts for 77 percent of hospitalisations.

Germany takes strict action against regions that are deemed ‘virus variant areas of concerns’, including the UK. Travel is banned from these countries except for residents and citizens. 

However, Chancellor Merkel has spoken out against the patchwork of travel rules across EU countries.

She called on all countries to quarantine arrivals from the UK. Some countries, such as Spain, have no restrictions on people coming from the UK.

READ ALSO: Merkel wants to see all European countries quarantine UK arrivals

Is this a critical time?

Dortmund immunologist Carsten Watzl said this development doesn’t mean people should panic, but called for vigilance.

“The case numbers of Alpha (the dominating variant in Germany) are quite well-behaved and clearly declining, but those of Delta are rising slightly,” he told DPA.

As Delta still accounts for the much smaller share of infection incidence, there has been no overall rebound in infection rates so far, he said.

“We’re still in the balance. But it could be that this is a tipping point now,” Watzl added.

READ ALSO: Nearly a quarter of new Covid infections in Munich area ’caused by Delta variant’

There are fears that Germany will see a steep rise in cases like the current wave in the UK. 

In the UK, Delta accounts for almost 90 percent of all new infections, even though about 60 percent of people there are already fully vaccinated, while 82.5 percent have had at least one initial dose.

Germany has fully jabbed about 33.5 percent of the population, and around 52.5 percent of people have been partially vaccinated. 

Research shows that full vaccination provides high protection against the variant, but preliminary data suggests that Delta can infect people that have received only one dose.

The Our World in Data chart below shows the increasing infections in the UK compared to Germany’s downward trend.

If there are further relaxations of rules or if Delta is imported from abroad through travel opening up, the situation could worsen again, said Watzl, who is secretary general of the German Society for Immunology.

“The good thing is we (Germany) have a buffer, we are at a very low 7-day incidence,” he said. 

EU health officials predicted on Wednesday that the Delta variant will make up 90 percent of all cases across the bloc by the end of August, and urged countries to fully vaccinate people as quickly as possible.

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COVID-19 RULES

Germany should prepare for Covid wave in autumn, ministers warn

German health ministers say that tougher Covid restrictions should come back into force if a serious wave emerges in autumn.

Germany should prepare for Covid wave in autumn, ministers warn

Following a video meeting on Monday, the health ministers of Germany’s 16 states said tougher restrictions should be imposed again if they are needed. 

“The corona pandemic is not over yet – we must not be deceived by the current declining incidences,” said Saxony-Anhalt’s health minister Petra Grimm-Benne, of the Social Democrats, who currently chairs the Conference of Health Ministers (GMK).

According to the GMK, new virus variants are expected to appear in autumn and winter. Over the weekend, federal Health Minister Karl Lauterbach (SPD) also warned that the more dangerous Delta variant could return to Germany. “That is why the federal Ministry of Health should draw up a master plan to combat the corona pandemic as soon as possible and coordinate it with the states,” Grimm-Benne said.

Preparations should also include an amendment of the Infection Protection Act, ministers urged. They want to see the states given powers to react to the infection situation in autumn and winter. They called on the government to initiate the legislative process in a timely manner, and get the states actively involved.

The current Infection Protection Act expires on September 23rd this year. Germany has loosened much of its Covid restrictions in the last months, however, face masks are still compulsory on public transport as well as on planes. 

READ ALSO: Do people in Germany still have to wear Covid masks on planes?

The health ministers said that from autumn onwards, it should be possible for states to make masks compulsory indoors if the regional infection situation calls for it. Previously, wearing a Covid mask was obligatory in Germany when shopping and in restaurants and bars when not sitting at a table. 

Furthermore, the so-called 3G rule for accessing some venues and facilities – where people have to present proof of vaccination, recovery, or a negative test – should be implemented again if needed, as well as other infection protection rules, the ministers said. 

Bavaria’s health minister Klaus Holetschek, of the CSU, welcomed the ministers’ unanimous call for a revision of the Infection Protection Act. “The states must be able to take all necessary infection protection measures quickly, effectively, and with legal certainty,” he said.

North Rhine-Westphalia’s health minister Karl-Josef Laumann (CDU) warned that no one should “lull themselves into a false sense of security”.

“We must now prepare for the colder season and use the time to be able to answer important questions about the immunity of the population or the mechanisms of infection chains,” he said.

On Tuesday, Germany reported 86,253 Covid infections within the latest 24 hour period, as well as 215 Covid-related deaths. The 7-day incidence stood at 437.6 infections per 100,000 people. However, experts believe there could be twice as many infections because lots of cases go unreported. 

READ ALSO: Five things to know about the Covid pandemic in Germany right now

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