Global Statistics

All countries
546,391,858
Confirmed
Updated on June 22, 2022 11:26 pm
All countries
518,902,973
Recovered
Updated on June 22, 2022 11:26 pm
All countries
6,344,765
Deaths
Updated on June 22, 2022 11:26 pm

Global Statistics

All countries
546,391,858
Confirmed
Updated on June 22, 2022 11:26 pm
All countries
518,902,973
Recovered
Updated on June 22, 2022 11:26 pm
All countries
6,344,765
Deaths
Updated on June 22, 2022 11:26 pm
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Can A Person Who Has Had Covid Be A Carrier

What About The Breakthrough Cases Of Covid

How long can asymptomatic people carry COVID-19? Your coronavirus questions answered

Reports of breakthrough cases of COVID-19 among the fully vaccinated have many people doubting the vaccines effectiveness. However, the CDC says that these breakthrough cases are not an indication that the vaccines dont work. So far, breakthrough infections have occurred among a small amount of fully vaccinated people, even with the delta variant. These infections have been mild so far as compared to those who were unvaccinated. While there have been some outliers, the CDC reports that fully vaccinated people are much less likely to be hospitalized or die than people with similar risk factors who are not vaccinated. Because this is a constantly evolving situation, they are working with state and local health departments to investigate breakthrough cases of COVID-19.

Read More About The Spread Of Covid

Dr Labzin said the worker, who was fully vaccinated, could have caught an extremely brief case of COVID-19 without ever knowing.

She said it would have been a brief infection because the worker’s immune system had been boosted by being fully vaccinated.

“When I say that, I mean that they caught the virus and it was potentially in their body long enough to potentially transmit on to the other patient,” Dr Labzin said.

She said the period she was infected could have been so brief that the worker still tested negative to COVID-19 later.

Dr Short explained a so-called “transient” infection may not even show up during testing to see if the worker had been exposed to the virus.

“It wasn’t enough of an infection to elicit an immune response, so you wouldn’t really see anything in serology,” Dr Short said.

People Who Recover From Covid ‘can Still Carry And Transmit The Virus’

Life reporter at HuffPost UK

People can still carry and transmit Covid-19 after recovering from the virus, according to early evidence from Public Health Englands SIREN study.

The same study found people infected with Covid-19 in the past are likely to be protected against reinfection for at least five months.

But experts cautioned those with immunity may still be able carry the virus in their nose and throat and therefore have a risk of transmitting it to others.

They urged people whove had Covid-19 already to continue following social distancing guidelines, particularly paying attention to Hands, Face, Space.

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Read More About The Vaccine Rollout:

Dr Labzin said it was still very important people got vaccinated.

“The first goal of our vaccines is to stop everyone getting severely sick with COVID-19,” she said.

“If we can keep people out of hospital and stop people from dying from this disease, we can turn COVID-19 into the equivalent of the common cold and that’s already a huge achievement.

“What this means is that we just need everyone to get vaccinated so that everyone is protected.”

Can Someone Who Has Been Quarantined For Covid

Tiny airborne particles may carry the new coronavirus

Quarantine means separating a person or group of people who have been exposed to a contagious disease but have not developed illness from others who have not been exposed, in order to prevent the possible spread of that disease. Quarantine is usually established for the incubation period of the communicable disease, which is the span of time during which people have developed illness after exposure. For COVID-19, the period of quarantine is 14 days from the last date of exposure, because 14 days is the longest incubation period seen for similar coronaviruses. Someone who has been released from COVID-19 quarantine is not considered a risk for spreading the virus to others because they have not developed illness during the incubation period.

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What Is The Source Of The Virus

This virus was first detected in Wuhan City, Hubei Province, China. The first infections were linked to a live animal market, but the virus is now spreading from person-to-person. Its important to note that person-to-person spread can happen on a continuum. Some viruses are highly contagious , while other viruses are less so. Currently, its unclear how easily or sustainably this virus is spreading between people. Learn what is known about the spread of newly emerged coronaviruses.

Why Is The Disease Being Called Coronavirus Disease 2019 Covid

On February 11, 2020 the World Health Organization announced an official name for the disease that is causing the 2019 novel coronavirus outbreak, first identified in Wuhan China. The new name of this disease is coronavirus disease 2019, abbreviated as COVID-19. In COVID-19, CO stands for corona, VI for virus, and D for disease. Formerly, this disease was referred to as 2019 novel coronavirus or 2019-nCoV.

There are many types of human coronaviruses including some that commonly cause mild upper-respiratory tract illnesses. COVID-19 is a new disease, caused be a novel coronavirus that has not previously been seen in humans. The name of this disease was selected following the World Health Organization best practice external icon for naming of new human infectious diseases.

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How Do We Know That The Vaccines Are Safe Given How Quickly They Were Developed

As of May 2021, more than 100 million Americans have been fully vaccinated. Public health agencies have been closely watching for any safety signals and we have safety data going back as far as August 2020 when Pfizer and Moderna first began vaccinating Phase 3 clinical trial participants.

In the United States, the FDA has required the same large clinical trial that it would otherwise require for a vaccine. We didnt do what some other countries did and approve it just based on some blood test results we actually looked at tens of thousands of people to see whether or not it prevented the disease.

One of the ways the process was sped up is that the taxpayers put a lot of money into this programthat was run out of the White Houseto allow companies to basically start each part of the process right from the beginning.

Typically, what would happen is a company might do one study and see whether it works. If it doesnt work, then theyre done. If it does work, then they start planning the next phase. And if that phase works, then they start planning the next. Everything is A, then B, then C. But with the money that the taxpayers put forward, the companies were able to do A, B, and C all at once. So, they started that rst phase and if that worked, they were ready to get going on that second phase. If it wasnt going to work, they would have lost all the money preparing for the second phase.

SOURCE: Joshua Sharfstein and Johns Hopkins Bloomberg School of Public Health

Are Mrna Vaccines New

Can COVID be transmitted between two vaccinated people? How long has mRNA technology been tested?

Although the first mRNA vaccines for humans were tested in 2013and these were rabies vaccinesthe technology had no commercial development opportunities until the COVID-19 pandemic which spurred manufacturers to develop dozens of vaccines against SARS-CoV-2 and brought tremendous increases in funding.

This is a technology that has been well studied and already, vaccine manufacturers are developing mRNA vaccines to protect against other diseases such as the flu and HIV. It’s a new era for vaccine technology and production, and a testament to scientific progress and decades of research.

SOURCE: Chris Beyrer

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Its Still Good To Be Cautious

While this is encouraging news, Dr. Cardona stresses that fully vaccinated people still need to be careful as everything opens up again.

Virus transmission may still occur from those who are infected and asymptomatic, or ill without knowing it, especially in crowded areas with a lack of physical distancing, respiratory precautions and hand washing. Other factors to consider are ongoing community transmission and immunization rates.

If you havent been vaccinated or havent completed the vaccination series, she recommends doing so. And if you have a unique circumstance that delays your ability to complete your series of shots as scheduled, still get the second dose. Dr. Cardona says restarting the series isnt necessary.

The CDC also recommends that fully vaccinated people wear masks indoors in public for maximum protection from the delta variant and to lessen the risks of transmission. You should also wear a mask if you have a weakened immune system, an underlying medical condition or are at high risk for severe disease.

If I’ve Had Covid How Long Should I Wait To Get Vaccinated Is It Ok To Get My First Dose If I No Longer Have Symptoms

If you are sick, stay home until you get better, which is around 10 days and no symptomsthen its fine to get vaccinated.

There are people who may get COVID right after their first shot, before theres any protection, and they could get vaccinated for their second shot on time if they want, with one exception: If theyve been treated for that COVID infection with antibody treatment, then theres a recommendation to wait 90 days so that that antibody treatment doesnt interfere with the vaccination.

SOURCE: Joshua Sharfstein

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How Long Do The Covid

The jury is still out on that one. According to Dr. Cardona and the Centers for Disease Control and Prevention , the exact timeframe for protection is unknown at this time. When you think about it, we all tolerate vaccines differently. So, the scientific community is still studying natural immunity and vaccine-induced immunity concerning COVID-19.

We dont know exactly how long the vaccines will protect us after being fully vaccinated. However, the CDC and experts are still working to determine the answer to this question and will keep us informed of any changes. But the one thing we do know is that getting vaccinated is still the safer choice for preventing serious illness for you, your loved ones and the benefit of our communities.

Do Different Kinds Of Covid

COVID

Molecular testsUS Food and Drug AdministrationIs it safe to travel for the holidays this year?Pia MacDonald, infectious disease epidemiologistAntigen tests often known as rapid testswhether you’ve previously had the virus President Donald TrumpVice President Mike PenceWhite House staffers often use rapid antigen tests

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Why Is This Important

“Whether you are asymptomatic or pre-symptomatic, you don’t realize you are infected, but you can spread the disease to others,” says Dr. Baroco.

Both explain that COVID-19 is spread by droplet. To spread the disease, infected droplets need to go from an infected person’s mouth or nose into someone else’s eyes, nose or mouth. That can happen directly, but not just through coughing or sneezing, but also through talking. Indirect contact through touching contaminated surfaces is also possible.

“By definition, asymptomatic means you have no symptoms, so to be responsible, we should all act as if we could be carriers of the virus,” says Bartley. “Avoid close contact with others, and be sure to maintain that six foot social distance. Wear a cloth mask or face covering in public, to help contain your droplets and reduce the risk of spreading the virus to others. If you’re not masked, be sure to cover your cough or sneeze. Wash your hands frequently and clean and disinfect high touch surfaces like counters and table tops thoroughly and often.”

“I would also add to monitor yourself and be mindful if you feel as if you are developing any symptoms,” adds Dr. Baroco. “Stay in tune to how you are feeling and stay home when you begin to feel unwell.”

How Serious Can Asymptomatic Carriers Be For Others

People who are asymptomatic can still transmit the virus even if they do not have symptoms or are vaccinated. Director of Maulana Azad Medical College, Doctor Naresh Gupta on December 30 warning about the widespread of the Omicron variant said, “Reportedly, 70 per cent Omicron patients are asymptomatic, and with the variant’s high transmissibility, it’s going to spread like fire once it gets into the community because you won’t know if the next person is infected.”

Therefore, it is important to get tested, and those who test positive for the virus isolate themselves immediately to prevent the spread of the virus to others and if required, receive medical treatment.

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Are People On Immunosuppressive Drugs More Susceptible To Severe Covid

New research finds that people taking immunosuppressive drugs to prevent organ transplant rejection or to treat inflammatory or autoimmune diseases do not fare worse than others on average when they are hospitalized with COVID-19. There is no indication that people taking these drugs should be concerned that their medication increases their risk for severe COVID-19.

COVID-19 vaccines are recommended for and can be administered to most people with underlying medical conditions. In some cases, people with certain medical conditions that cause a suppressed immune system should receive a third dose of either the Moderna or Pfizer vaccine as soon as 28 days after the second dose.

SOURCES: Caleb Alexander, Johns Hopkins Bloomberg School of Public Health

What Does Testing Tell Us The Spread Of The Virus What Is Percent Positive

How long can someone carry the virus? Coronavirus Outbreak Answers | COVID-19 in Context

Public health officials rely on testing results to track the state of the pandemic and policymakers use this information to guide decisions on reopening schools and businesses.

Percent positive is the percentage of all coronavirus tests performed that are actually positive, or: / x 100%. The percent positive helps public officials understand the current level of SARS-CoV-2 transmission in the community and whether or not a community is doing enough testing for the number of people who are getting infected.

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If A Vaccine Is Showing 95% Efficacy Does That Mean That 5% Of People Who Are Vaccinated Would Still Get Covid

There’s a lot of different ways that people calculate efficacy. Think about it as if you were vaccinated and your friend was not vaccinated, and you were both exposed to the same amount of virus. Your risk of coming down with COVID is 95% reduced compared to your unvaccinated friend.

Some other vaccines offer 50% efficacy. When you think of it in those termsif you have a 50% reduced risk of coming down with disease an unvaccinated person exposed to the same amount of virusit’s still a pretty good risk calculation for yourself.

95% efficacy is amazing. That’s more like the efficacy that we see for childhood vaccinesdiphtheria, MMR, tetanus, or measles.

SOURCE: Gigi Gronvall

Who Is A Silent Carrier

There is recent evidence that COVID-19 can spread through silent carriers. These silent carriers or spreaders are people who are infected with coronavirus but show little or no symptoms of the disease. As a result, these people carry on with their daily lives, meeting family and friends, going to work, and spreading the disease without their own knowledge. It appears that most asymptomatic carriers are healthy young adults and children. If you come to contact with people who are positive for COVID-19, you may be positive despite not showing any symptoms of the disease.

The terms that are used to classify the silent carriers are:

  • Mildly symptomatic carriers

People who display very mild symptoms like a mild cough or may just be feeling a little low come in this category. The virus mainly affects the upper respiratory tract and may cause mild cough or mild breathlessness on exertion. Your fever may not reach 37.8. You may lose your sense of smell, have mild headaches, or develop a runny nose. These symptoms usually last for seven to ten days. It has been seen that some people showing mild symptoms can rapidly deteriorate, more often among people in the high-risk group.

  • Pre-symptomatic carriers

Some people do not develop any symptoms for up to a week after contracting the disease. They may later on experience cough, fever, or breathing difficulty.

  • Asymptomatic carriers

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When Can I Resume Normal Activities After A Covid Infection If I Had Symptoms

The CDC is monitoring the COVID-19 pandemic and has issued interim guidance for ending isolation. This guidance is subject to change so please check the CDC’s site for the latest.

You can be around others after:

  • 5 days since symptoms first appeared AND
  • 24 hours with no fever without the use of fever-reducing medications AND
  • Other symptoms of COVID-19 are improving*

*Loss of taste and smell may persist for weeks or months after recover and need not delay the end of isolation.

You should continue to wear a well-fitting mask around others at home and in public for 5 additional days after the end of your 5-day isolation period. Avoid people who are immunocompromised or high-risk for at least 10 days.

SOURCE: CDC

Health Experts Weigh In On Symptoms Testing Masking And More

In a very short time, the highly infectious Omicron COVID-19 variant has upended many aspects of our lives. Both California and Sacramento County are seeing record numbers of infections and testing is in great demand. Statewide, the positivity rate is over 21%. Luckily, Omicron appears to cause milder illness in many people. At UC Davis Medical Center, COVID-related hospitalizations have ticked up, but remain below previous surge peaks.

UC Davis Health infectious diseases experts, epidemiologists and public health experts answer common questions about Omicron and explain what you can do to reduce your risk.

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What Should I Do If I Cant Get A Covid Test

The rapid increase in demand has made testing more challenging. If possible, check different testing sites and try to be flexible in terms of when and where you are willing to go, Blumberg recommended.

If youre seeking a test, please seek options other than the Emergency Department . UC Davis Medical Centers ED has seen a record number of patients recently, and providers need to care for those who are seriously ill. The ED is not the best fit for someone with no symptoms or mild symptoms.

If you have COVID-19 symptoms, it is better to err on the side of caution and quarantine until you can get tested, advised Brad Pollock, professor and chair of the Department of Public Health Sciences. If you have symptoms, the rapid antigen at-home tests are also useful to determine whether youre infectious. Even better, use rapid tests on two consecutive days to reduce the chance of transmitting the infection to others.

Learn more about the different types of COVID-19 tests available.

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