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Coronavirus testing: What you need to know about antibody tests, antigens and serology – CNET

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Antibody testing looks for evidence that a person has been infected with the coronavirus SARS-CoV-2, but not the virus itself.


James Martin/CNET

For the most up-to-date news and information about the coronavirus pandemic, visit the WHO website.

In the ongoing battle against the coronavirus pandemic, antibody tests are being touted as a crucial step that could herald the end of social distancing and hasten the reopening of the economy while we wait for a vaccine. Other phrases you might have heard include “antigen testing” and “serology,” each implying a swift return to normalcy. Add blood tests, nose swab tests, drive-through testing sites and at-home test kits to the conversation, it can be difficult to tease out which tests reveal what and what the results even mean.

Antibody tests have been stealing the spotlight lately because they might be able to show if you’ve ever had COVID-19, even if you never had any symptoms or knew you were infected. If it turns out you were, it could mean you’re now immune to the coronavirus and it’s safe to be around others.

But there’s a lot of confusion and debate surrounding what antibody tests can and can’t do, if they’re even reliable enough to tell us anything useful, and where and how you can take the tests. Here’s what we know (and don’t know) so far.

One more note: This article is intended to be a resource to help you understand current coronavirus testing as presented by organizations such as the US Food and Drug Administration and Centers for Disease Control and Prevention. It isn’t intended to serve as medical advice. If you’re seeking more information about coronavirus testing, here’s how to find a testing site near you (here’s another way for Apple Maps users). Here’s how to know if you qualify for a test and why there aren’t any coronavirus at-home test kits yet. This story is updated frequently as new information comes to light.

What is antibody testing for coronavirus?

An antibody test is a type of medical test that could help doctors determine if you have ever been infected with the coronavirus, regardless of whether or not you ever felt sick. This is important because many who contract the disease are asymptomatic

Antibody testing does not, however, reveal whether you are currently infected with the virus, nor does it indicate whether you have recovered from it if you did have it. The test only shows whether or not at some point you had the virus — nothing more, nothing less.


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Why is the antibody test such a big deal?

A positive antibody test result usually means you’re immune to the disease being tested for. Although researchers don’t know enough about COVID-19 yet to be able to say for sure whether you’ll be immune, the hope is that people who have recovered from the disease won’t be able to catch it again, or, for that matter, infect others. 

If that turns out to be the case, once a high enough percentage of the population has developed immunity to the coronavirus, a form of indirect protection called “herd immunity” might shield those who haven’t been exposed yet from getting the disease — and help usher in an end to the pandemic.

Can antibody tests tell if you’re immune to coronavirus?

With other diseases caused by coronaviruses — like SARS and MERS — a positive antibody test usually indicates some degree of immunity. However, the World Health Organization has warned that scientists don’t know enough yet about this new coronavirus — which is technically called SARS-CoV-2 — to be able to say one way or the other. They’re working on figuring it out.


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How does antibody testing work?

Antibody testing looks for proteins in the blood, called antibodies, which are left over after your body fights off a disease. When your immune system detects a new infection, your body starts producing antibodies, which it then trains to fight that specific invader. These antibodies figure out the invader’s weaknesses, then neutralize, destroy and ultimately remove it from your body.

After it’s gone, your body continues producing antibodies in case it ever comes back. That’s what the coronavirus antibody tests look for — the leftover antibodies your immune system produced to fight the coronavirus.

Where can I get a coronavirus antibody test? 

For now, you’ll have to start by talking to your doctor or another health care practitioner who is licensed to order lab tests. Guidelines vary by provider and by state, but generally you have to have been asymptomatic for one to two weeks (including the day of the test). 

Up until this week, antibody tests have not been widely available in the US, so health care professionals and first responders have been given priority. But starting April 27, you can get an FDA-authorized coronavirus antibody test at LabCorp facilities or doctors’ offices and health care facilities staffed with a LabCorp technician (there are thousands nationwide).

Right now, only the LabCorp test and three other antibody test kits have been authorized by the FDA under a rule that allows medical devices to be used during a public health emergency prior to FDA review. Under a similar emergency policy, the FDA is also allowing the use of test kits from nearly 100 other manufacturers, but some experts warn you shouldn’t trust such tests until they have been vetted more thoroughly. 


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What is an antigen?

An antigen is a substance that usually comes from your environment and makes you sick when it gets inside your body. Common antigens include bacteria and viruses. Antigens trigger your immune system to produce antibodies, which fight back.

Antigens can get into your system much the same way you bring the substances you need to survive into your body. You can inhale airborne antigens into your lungs when you breathe, for example. Or you can bring antigens into your mouth when you, say, pick up an infectious substance like the coronavirus off a surface with your hands, then touch your face.

Antigens can also get into your body through your ears, eyes and nose. Rarely, but occasionally, you can absorb them through your skin.

How is antigen testing different from antibody testing?

An antigen test looks to see if you currently have the disease by searching for genetic information unique to a particular virus or bacterium. It tells doctors whether you are currently infected or not, but not if you were infected in the past and have since recovered.

Conversely, an antibody test only shows whether or not you’ve had the disease in the past. It can take up to two weeks for antibodies to be detectable in your blood — usually long after the virus has been defeated and an antigen test would come back negative.


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What is serology or a serology test?

Serology refers to the study of blood serum, and the vast majority of serology testing is done to detect antibodies. Other body fluids, like saliva, can be tested too, but that’s because they contain trace elements of blood, which is what’s actually being tested.

Serology tests can also determine blood type when donating blood or receiving a transfusion. They can be used to measure the levels of pharmaceuticals present in the bloodstream, during a drug trial, for example. But most of the time, when experts use the phrase “serology” or “serology testing,” they’re talking about antibody tests.

Although increased antibody testing may help hasten the end of lockdown, it’s not the only thing that can speed the return to normalcy. Here’s a look at what needs to happen before shelter-in-place orders begin to be lifted in the US. If you or someone in your home contracts COVID-19, here are the steps you need to take to avoid spreading the virus further. And here’s what to do to stay safe when you have no choice but to venture out in public.

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What’s the greatest holiday gift: lips, hair, skin? Give the gift of great skin this holiday season

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Give the gift of great skin this holiday season

Skinstitut Holiday Gift Kits take the stress out of gifting

Toronto, October 31, 2024 – Beauty gifts are at the top of holiday wish lists this year, and Laser Clinics Canada, a leader in advanced beauty treatments and skincare, is taking the pressure out of seasonal shopping. Today, Laser Clincs Canada announces the arrival of its 2024 Holiday Gift Kits, courtesy of Skinstitut, the exclusive skincare line of Laser Clinics Group.

In time for the busy shopping season, the limited-edition Holiday Gifts Kits are available in Laser Clinics locations in the GTA and Ottawa. Clinics are conveniently located in popular shopping centers, including Hillcrest Mall, Square One, CF Sherway Gardens, Scarborough Town Centre, Rideau Centre, Union Station and CF Markville. These limited-edition Kits are available on a first come, first served basis.

“These kits combine our best-selling products, bundled to address the most relevant skin concerns we’re seeing among our clients,” says Christina Ho, Senior Brand & LAM Manager at Laser Clinics Canada. “With several price points available, the kits offer excellent value and suit a variety of gift-giving needs, from those new to cosmeceuticals to those looking to level up their skincare routine. What’s more, these kits are priced with a savings of up to 33 per cent so gift givers can save during the holiday season.

There are two kits to select from, each designed to address key skin concerns and each with a unique theme — Brightening Basics and Hydration Heroes.

Brightening Basics is a mix of everyday essentials for glowing skin for all skin types. The bundle comes in a sleek pink, reusable case and includes three full-sized products: 200ml gentle cleanser, 50ml Moisture Defence (normal skin) and 30ml1% Hyaluronic Complex Serum. The Brightening Basics kit is available at $129, a saving of 33 per cent.

Hydration Heroes is a mix of hydration essentials and active heroes that cater to a wide variety of clients. A perfect stocking stuffer, this bundle includes four deluxe products: Moisture 15 15 ml Defence for normal skin, 10 ml 1% Hyaluronic Complex Serum, 10 ml Retinol Serum and 50 ml Expert Squalane Cleansing Oil. The kit retails at $59.

In addition to the 2024 Holiday Gifts Kits, gift givers can easily add a Laser Clinic Canada gift card to the mix. Offering flexibility, recipients can choose from a wide range of treatments offered by Laser Clinics Canada, or they can expand their collection of exclusive Skinstitut products.

 

Brightening Basics 2024 Holiday Gift Kit by Skinstitut, available exclusively at Laser Clincs Canada clinics and online at skinstitut.ca.

Hydration Heroes 2024 Holiday Gift Kit by Skinstitut – available exclusively at Laser Clincs Canada clinics and online at skinstitut.ca.

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Here is how to prepare your online accounts for when you die

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LONDON (AP) — Most people have accumulated a pile of data — selfies, emails, videos and more — on their social media and digital accounts over their lifetimes. What happens to it when we die?

It’s wise to draft a will spelling out who inherits your physical assets after you’re gone, but don’t forget to take care of your digital estate too. Friends and family might treasure files and posts you’ve left behind, but they could get lost in digital purgatory after you pass away unless you take some simple steps.

Here’s how you can prepare your digital life for your survivors:

Apple

The iPhone maker lets you nominate a “ legacy contact ” who can access your Apple account’s data after you die. The company says it’s a secure way to give trusted people access to photos, files and messages. To set it up you’ll need an Apple device with a fairly recent operating system — iPhones and iPads need iOS or iPadOS 15.2 and MacBooks needs macOS Monterey 12.1.

For iPhones, go to settings, tap Sign-in & Security and then Legacy Contact. You can name one or more people, and they don’t need an Apple ID or device.

You’ll have to share an access key with your contact. It can be a digital version sent electronically, or you can print a copy or save it as a screenshot or PDF.

Take note that there are some types of files you won’t be able to pass on — including digital rights-protected music, movies and passwords stored in Apple’s password manager. Legacy contacts can only access a deceased user’s account for three years before Apple deletes the account.

Google

Google takes a different approach with its Inactive Account Manager, which allows you to share your data with someone if it notices that you’ve stopped using your account.

When setting it up, you need to decide how long Google should wait — from three to 18 months — before considering your account inactive. Once that time is up, Google can notify up to 10 people.

You can write a message informing them you’ve stopped using the account, and, optionally, include a link to download your data. You can choose what types of data they can access — including emails, photos, calendar entries and YouTube videos.

There’s also an option to automatically delete your account after three months of inactivity, so your contacts will have to download any data before that deadline.

Facebook and Instagram

Some social media platforms can preserve accounts for people who have died so that friends and family can honor their memories.

When users of Facebook or Instagram die, parent company Meta says it can memorialize the account if it gets a “valid request” from a friend or family member. Requests can be submitted through an online form.

The social media company strongly recommends Facebook users add a legacy contact to look after their memorial accounts. Legacy contacts can do things like respond to new friend requests and update pinned posts, but they can’t read private messages or remove or alter previous posts. You can only choose one person, who also has to have a Facebook account.

You can also ask Facebook or Instagram to delete a deceased user’s account if you’re a close family member or an executor. You’ll need to send in documents like a death certificate.

TikTok

The video-sharing platform says that if a user has died, people can submit a request to memorialize the account through the settings menu. Go to the Report a Problem section, then Account and profile, then Manage account, where you can report a deceased user.

Once an account has been memorialized, it will be labeled “Remembering.” No one will be able to log into the account, which prevents anyone from editing the profile or using the account to post new content or send messages.

X

It’s not possible to nominate a legacy contact on Elon Musk’s social media site. But family members or an authorized person can submit a request to deactivate a deceased user’s account.

Passwords

Besides the major online services, you’ll probably have dozens if not hundreds of other digital accounts that your survivors might need to access. You could just write all your login credentials down in a notebook and put it somewhere safe. But making a physical copy presents its own vulnerabilities. What if you lose track of it? What if someone finds it?

Instead, consider a password manager that has an emergency access feature. Password managers are digital vaults that you can use to store all your credentials. Some, like Keeper,Bitwarden and NordPass, allow users to nominate one or more trusted contacts who can access their keys in case of an emergency such as a death.

But there are a few catches: Those contacts also need to use the same password manager and you might have to pay for the service.

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Is there a tech challenge you need help figuring out? Write to us at onetechtip@ap.org with your questions.

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Pediatric group says doctors should regularly screen kids for reading difficulties

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The Canadian Paediatric Society says doctors should regularly screen children for reading difficulties and dyslexia, calling low literacy a “serious public health concern” that can increase the risk of other problems including anxiety, low self-esteem and behavioural issues, with lifelong consequences.

New guidance issued Wednesday says family doctors, nurses, pediatricians and other medical professionals who care for school-aged kids are in a unique position to help struggling readers access educational and specialty supports, noting that identifying problems early couldhelp kids sooner — when it’s more effective — as well as reveal other possible learning or developmental issues.

The 10 recommendations include regular screening for kids aged four to seven, especially if they belong to groups at higher risk of low literacy, including newcomers to Canada, racialized Canadians and Indigenous Peoples. The society says this can be done in a two-to-three-minute office-based assessment.

Other tips encourage doctors to look for conditions often seen among poor readers such as attention-deficit hyperactivity disorder; to advocate for early literacy training for pediatric and family medicine residents; to liaise with schools on behalf of families seeking help; and to push provincial and territorial education ministries to integrate evidence-based phonics instruction into curriculums, starting in kindergarten.

Dr. Scott McLeod, one of the authors and chair of the society’s mental health and developmental disabilities committee, said a key goal is to catch kids who may be falling through the cracks and to better connect families to resources, including quicker targeted help from schools.

“Collaboration in this area is so key because we need to move away from the silos of: everything educational must exist within the educational portfolio,” McLeod said in an interview from Calgary, where he is a developmental pediatrician at Alberta Children’s Hospital.

“Reading, yes, it’s education, but it’s also health because we know that literacy impacts health. So I think that a statement like this opens the window to say: Yes, parents can come to their health-care provider to get advice, get recommendations, hopefully start a collaboration with school teachers.”

McLeod noted that pediatricians already look for signs of low literacy in young children by way of a commonly used tool known as the Rourke Baby Record, which offers a checklist of key topics, such as nutrition and developmental benchmarks, to cover in a well-child appointment.

But he said questions about reading could be “a standing item” in checkups and he hoped the society’s statement to medical professionals who care for children “enhances their confidence in being a strong advocate for the child” while spurring partnerships with others involved in a child’s life such as teachers and psychologists.

The guidance said pediatricians also play a key role in detecting and monitoring conditions that often coexist with difficulty reading such as attention-deficit hyperactivity disorder, but McLeod noted that getting such specific diagnoses typically involves a referral to a specialist, during which time a child continues to struggle.

He also acknowledged that some schools can be slow to act without a specific diagnosis from a specialist, and even then a child may end up on a wait list for school interventions.

“Evidence-based reading instruction shouldn’t have to wait for some of that access to specialized assessments to occur,” he said.

“My hope is that (by) having an existing statement or document written by the Canadian Paediatric Society … we’re able to skip a few steps or have some of the early interventions present,” he said.

McLeod added that obtaining specific assessments from medical specialists is “definitely beneficial and advantageous” to know where a child is at, “but having that sort of clear, thorough assessment shouldn’t be a barrier to intervention starting.”

McLeod said the society was partly spurred to act by 2022’s “Right to Read Inquiry Report” from the Ontario Human Rights Commission, which made 157 recommendations to address inequities related to reading instruction in that province.

He called the new guidelines “a big reminder” to pediatric providers, family doctors, school teachers and psychologists of the importance of literacy.

“Early identification of reading difficulty can truly change the trajectory of a child’s life.”

This report by The Canadian Press was first published Oct. 23, 2024.

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