Public health chiefs have discovered how one Irish woman who was infected by her housemate after a trip to the pub led to a staggering 46 other Covid-19 cases.
The team of specialists traced a household transmission case in an Irish manufacturing plant which led to 26 coronavirus cases.
It also was the main factor in a further 20 cases in other households, in one school and in one nursing home.
This woman was an 'index case' for Dr Douglas Hamilton who became aware of the 'superspreader' who worked in the plant.
It is understood that she picked up the virus from a person she was living with who in turn had been infected after being in a pub according to reports this morning.
And sadly it's not the first case in Ireland of these type of large case spreaders.
In October, a Dublin patient is understood to have spread the deadly coronavirus to a total of nearly 30 patients and staff after being transferred from one hospital to another.
One of the units in the hospital had to be locked down entirely after the combination of workers and fellow attendees tested positive after coming in contact with the person.
It is understood that the patient was transferred to a midlands hospital from a Dublin one in mid-October.
The patient was put into a general ward in the hospital, where over 1,000 people work, and became ill before testing positive for Covid-19.
And in another superspreader case, one person passed the lethal virus onto another 30 people including their own family, their colleagues and funeral mourners.
The original infected person tested positive recently before spreading Covid-19 to 16 of their extended family.
From there, one of those family member's infected two colleague while another attended a funeral inflicting the killer virus on three people.
From the same funeral, one mourner picked it up and passed it on to six people in their family - one of which, spread it to two of their colleagues with one case becoming thirty in just days.
Dr Mai Mannix, Director of Public Health, HSE Mid West said that this just shows how easy the virus can spread when not controlled.
