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White tail menace swells
By KAROLINE TUCKEY – Manawatu Standard Wednesday, 12 November 2008
JONATHAN CAMERON/Manawatu Standard
BUSTED: The female white-tailed spider that put Daniel Bailey, inset, in hospital.
A spate of white-tail spider attacks saw at least three people treated in Palmerston North Hospital at the weekend.
Palmerston North man Daniel Bailey was probably ambushed as he lay sleeping in bed, and it's understood two others were bitten in separate incidents. By Sunday night it had developed into a nasty spreading infection that required hospital treatment.
Mr Bailey, 31, woke with a swollen and painful elbow late on Saturday morning.
"It was a little swollen and ached, it was quite an intense pain if anything brushed it.
Mr Bailey said when he woke up he was aware of it straight away."
He first thought it might have been tennis elbow.
"By Sunday morning my elbow was sticking out and was swollen to the size of half a golf-ball. Time passed and the swelling grew redder and hotter."
He found a large white-tailed spider – about 1. By late that evening it was spreading almost a centimetre up my arm every hour. He became concerned – he's been bitten by white-tailed spiders twice before – and called the free national HealthLine advice service.5cm long – in clothes he had been wearing the day before.
After describing his symptoms and the spider, Mr Bailey was advised to see a doctor fast.
After describing his symptoms and the spider, Mr Bailey was advised to see a doctor fast.
"The doctors were great, once the antibiotics kicked in, the spreading stopped," he said.
Over the next 18 hours Mr Bailey was given intravenous antibiotics, observed, and his elbow encased in a plaster cast for protection.
"I'm a software engineer, and I can't reach the keyboard to type with my elbow bent around in the cast.
Mr Bailey said he would be off work until the cast was removed in a few days. About 10cm down his arm from the new wound is a small neat pair of fang-shaped scars from his last encounter, 10 years ago."
This isn't the first time a white-tail has taken a bite from Mr Bailey. I was doing some landscaping and I didn't know what it was, so I ignored it for about four days.
"That actually got quite bad. All the skin around my arm was stretched out, and it felt like it might split.
"My arm was swollen out to here, It was very painful.
While he was in hospital, he saw two other people treated for suspected white- tailed spider bites.
While he was in hospital, he saw two other people treated for suspected white- tailed spider bites.
"A man was bitten on his fingertip when he was gardening, and because the wound became gangrenous so fast they had to remove the end of his finger."
Another woman had breathing problems because she had been bitten on her chest.
"She was facing upwards in bed, and there was a white-tailed spider [on the ceiling] above her."
SLEEPY SPIDERS COME TO LIFE
Beware of white-tailed spiders. They love warm weather as much as we do.
Retired Palmerston North entomologist, Jim Esson, warns that now is the time spiders wake from winter fasting.
"During the winter they fast and hole up, so as it gets warmer they start trying to build up body mass to get ready for laying eggs.''
The spiders don't build webs. They feed mainly on other spiders and move around a lot hunting. They're particularly partial to grey house spiders, which live around house window frames.
The white-tailed spider is native to Australia, but Mr Esson says it has been in New Zealand for around 80 to 90 years.
The larger female spider has the worst bite, but problems for humans come not from bites or toxins, but from bacteria in the spiders' mouths.
"The type of bacteria will depend on where they've been, and what they've been eating. The big problem is when you getinfected wounds caused by fasciating bacteria.''
There are no proven cases of death from white-tailed spider bites, but secondary infections from the bacteria can lead to severe complications, such as gangrene.Each victim reacts differently to spider-mouth bacteria.
There is virtually no way to stop them invading human homes or sheds, as they stalk other spiders to eat. Mr Esson says his best advice when dealing with white-tails is to be brutal."Step on them.''
Bite victims need medical aid if symptoms such as redness, pain, swelling, drowsiness, high temperature or flu-like symptoms develop.
The biggest white-tailed spider myth is that they carry toxins from eating daddy-long-legs.
"That is a complete, utter and total myth. 99.95 percent of spiders have a toxin, but the daddy-long-legs are one of the few species that don't. ."