There is an ongoing surge in Covid-19 cases, with 480 people getting infected over the past week. This exceeds the total number of infections reported over last month.
Most of the new cases can be traced either to the cluster linked to KTV lounges or to the one at Jurong Fishery Port. The two clusters are linked, said Health Minister Ong Ye Kung in a Facebook post yesterday.
Both clusters are of concern - but for different reasons.
This cluster has 193 cases linked to it so far.
The number will probably continue to increase for some time since it is quite likely that some who have been infected would prefer to lie low, hence continuing the chain of transmission.
The reason why some KTV patrons may not get themselves tested is also the reason why this cluster is so disappointing, from Singapore's perspective.
This has nothing to do with moral issues, which are personal to individuals.
The only way so many patrons and staff could have been infected at former KTV outlets, which had supposedly pivoted to serving only food and drinks, is if the laws were flouted.
Had these laws been followed, with two patrons seated at each table and no intermingling between tables - and certainly not with hostesses - it's unlikely there would be close to 200 cases in such a short time.
The presence of hostesses itself is telling. Why would a regular food and beverage (F&B) outlet need hostesses?
In other words, hundreds of people broke the laws - while a pandemic was still raging - with little regard for their own health, the health of their families and friends, and the nation's efforts to contain the spread of Covid-19.
These are the proprietors of the lounges, their staff and patrons.
It is because of these people that the whole nation is now facing stricter measures.
The authorities, too, should have kept a sharper eye on these establishments.
The multi-ministry task force (MTF) tackling Covid-19 allowed nightspots to pivot to become F&B outlets to help them earn enough to pay their rent and staff. At first glance, it was a laudable move.
But, on deeper reflection, surely there should have been questions about whether it was viable for former KTV lounges to function as F&B outlets. Or whether all of them really wanted to keep their end of the bargain.
Most of these places do not have kitchens that can serve hot food. This means they would likely serve drinks and snacks, just as they did when they were nightspots.
How many patrons would turn up with one friend to have a drink and snacks, and leave within the hour?
Furthermore, many karaoke lounges have small individual rooms. In pre-Covid-19 days, there were also open bars crammed with patrons. How many spaced-out tables can they accommodate?
Given these red flags, shouldn't such places have been monitored more closely for safety breaches?
Finance Minister and MTF co-chair Lawrence Wong had explained: "Each time you do an enforcement check, there is a little bit of cat and mouse going on, because the enforcement officers come in... the people who are breaking the rules will be on the lookout, they see someone coming in and then they may start to adjust, and respond accordingly."
That is true, of course. But it just means that to catch the mouse, the cat has to be smarter. If it was possible for people to run out through the back door, someone should have been waiting there to nab them.
It is also likely that the enforcement officers used for such inspections lacked the experience needed in such circumstances.
A police blitz on Saturday on unlicensed public entertainment outlets resulted in the arrest of three men, while 36 others are being investigated for possibly breaching Covid-19 rules.
So why weren't the police monitoring these pivoted nightspots all along?
Yes, there are hundreds of nightspots so the task is not an easy one, but catching and exposing such breaches, including throwing the book at them, would have served as a warning to others.
Or maybe not.
The fact that a police operation, conducted after the emergence of the KTV cluster, was able to nab 39 potential lawbreakers is telling in itself - since infringements continue, even after the KTV transmission was made public.
While enforcement is not easy, it will be necessary if pivoted nightspots that have followed the rules are to be allowed to continue with their business.
Fishery port cluster
The cluster that emerged from Jurong Fishery Port is a different story altogether.
There appears to be no major legal breaches here - though some of those who were infected are believed to have patronised KTV outlets - and either spread the virus in that susceptible community, or brought it to the wholesale market.
And yet, because of this cluster, more than a dozen wet markets and food courts have to be closed and deep cleaned. The virus likely spread to these places through people buying fish at the wholesale market, and selling them at wet markets or cooked food stalls.
Yesterday, another 116 cases were found to be linked to this cluster, more than doubling the cluster's size to 179.
Safety measures are not foolproof. Neither does vaccination provide 100 per cent protection. So transmission can occur, even if all rules are adhered to.
But again, there were probably breaches in safety measures for the virus to spread so widely and so quickly.
These are more likely to be unintended breaches, such as masks not being worn properly, or reused too many times, or being wet and thus not offering sufficient protection.
Or someone could have touched surfaces where the virus lurked, and then touched his face without washing or sanitising his hands properly.
And who could blame stallholders, who were likely concentrating on their work, or shoppers looking for the best deals, possibly in hot and sweaty conditions?
Nevertheless, such breaches allow the virus to spread.
In a sense, this offers a peek into what accepting Covid-19 as endemic will mean for Singapore, especially if the rate of vaccination remains low among seniors.
Mr Ong said in his post: "It reflects the transmissibility of the Delta variant."
Over the past month, 96 per cent of cases here were infected with this more transmissible variant.
Importance of vaccination On Sunday, the Ministry of Health (MOH) urged all unvaccinated seniors to stay home as much as possible for the next few weeks, to avoid getting infected by the growing clusters, since their risk of getting seriously ill is far higher than that of someone who has been vaccinated.
People who want to see more measures being eased should first help convince their older acquaintances to get vaccinated.
According to MOH data, of the 465 people infected over the last four weeks, the 135 who had been fully vaccinated were asymptomatic or showed only mild symptoms. This is regardless of their age.
True, among the 185 who were infected but not vaccinated, 96 per cent also had mild or no symptoms. But about one in 25 needed oxygen or intensive care.
All but one who needed intensive care over the past four weeks, as well as the vast majority of those who needed oxygen - in other words, those who were seriously ill - were aged 60 and older.
Today, just slightly more than seven in 10 people aged 70 and older are protected by vaccines. In other words, the group that is most at risk has the lowest take-up rate among all vaccine-eligible age groups.
Unless this improves, there is a real risk of hospital beds filling up and people dying when measures are eased once the majority of people here are vaccinated by next month.
Professor Ooi Eng Eong, a microbiologist at Duke-NUS Medical School, said: "The Delta variant is a lot more infectious. Measures that worked in the past may not be as effective."
With a transmission rate of five to eight - in other words, one infected person is likely to infect between five and eight people who are not vaccinated (those who have been vaccinated may get infected, but the rate would be much lower) - Prof Ooi said vaccination is the best strategy.
That was how smallpox, with a similar transmission rate, was controlled.
Today, about 2.7 million people, or roughly half the population, have been fully vaccinated against Covid-19, with another 1.5 million partially vaccinated.
Singapore plans to ease restrictions once two-thirds of people here are fully vaccinated. So time is running out for the one million eligible people still dithering about whether to get vaccinated.