Cases of coronavirus could rise to a peak in May or June, according to the “best guess” of Wales’ chief medical officer.
A total of 450 people have been tested for coronavirus in Wales so far, with just one case confirmed in Swansea.
Dr Frank Atherton said there was “active surveillance in place” of patients coming through intensive care or seeing their GP.
He was giving details of the Welsh response to the outbreak of the virus.
More than 90,000 people around the world have been infected, with more than 3,000 deaths.
The UK Government said on Tuesday up to one in five workers could be off sick with the virus at the same time at the peak of a coronavirus epidemic.
Its preparation plans said:
- Police may focus on only responding to the most serious crimes and maintaining public order
- The military could provide support to emergency services
- Non-urgent hospital care may be delayed to focus on coronavirus patients and retired doctors and nurses may be recalled
- Other measures included school closures, reducing social gatherings and working from home
- Councils in Wales have the powers to apply to magistrates for an order to “isolate, detain or require” individuals to undertake a medical examination.
However, Dr Atherton said now was a time for a “period of calm preparation” with a “mantra” of personal hygiene and looking at social contact.
There are currently no plans to close schools and decisions to do so would only be taken with the scientific evidence to back it up.
He outlined what would happen during different phases of the outbreak, potentially involving a pandemic.
His “best guess” was cases would escalate and said modelling suggested this would happen from April, followed by six to eight weeks of a significant increase with a peak towards May and June, before a downturn.
What do I need to know about the coronavirus?
- LIVE UPDATES: Diplomats to leave North Korea after virus lockdown
- HOW IS THE UK PLANNING FOR AN OUTBREAK: How prepared are we?
- WHAT ARE THE SYMPTOMS? A simple guide
- WAYS TO PREVENT CATCHING IT: How to wash your hands
- HOW TO SELF-ISOLATE: What you need to know
- WHERE ARE WE WITH A VACCINE? Progress so far
- A VISUAL GUIDE TO THE OUTBREAK: Virus maps and charts
There is a scenario which could see NHS operations cancelled and outpatient clinics stopped, but health boards have plans in place in case this happened.
If there was a “significant number” of patients, this could see people treated in isolation facilities.
Most cases were likely to be mild but there was a significant risk the NHS would have to treat more patients.
Plans are also being made to cover increased NHS staff absence, including increasing capacity in hospitals and treating people in their own homes.
Dr Atherton said people who had a cold should not visit an elderly relative in a care home, for example, to “help protect the most vulnerable”.
Wales’ Health Minister Vaughan Gething said the immediate focus was on containment and delaying the spread.
The NHS 111 line was now available across Wales for coronavirus advice and support, he said.
Previously, the number had only been available to callers from Hywel Dda, Powys, Aneurin Bevan and Swansea Bay health board areas and callers from other areas had been told to use the NHS Direct number, 0845 46 47.
Why does Wales not have its own isolation unit?
Mr Gething said having four isolation units in England at this stage was a “deliberate choice” by all UK nations, agreed several weeks ago, in response to a global issue.
He said it was not about having a “fortress Wales approach” and he had been taking part in regular Cobra calls with fellow health ministers.
However, the message for today was “go about your normal business”, he said, with “catch it, bin it, kill it” and hand washing being important to emphasise.