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Simply talking can also transmit the Coronavirus

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There have been previous reports on the risk of transmission being higher in public places, especially restaurants, where people tend to speak louder due to the music and thereby transmit more droplets while talking. However, it has come to light that speaking calmly and at a normal volume produces liquid droplets so small they can remain suspended in the air long enough to enter the airways of other people, potentially exposing them to viruses including the one that causes Covid-19, according to scientists at the National Institutes of Health (NIH).

The study published in the New England Journal of Medicine reports that aerosols from infected persons may pose an inhalation threat even at considerable distances and in enclosed spaces, particularly if there is poor ventilation such as air-conditioned chambers, flights, restaurants, spas, gyms, etc.

This comes in light of the speculations in the past to check if the coronavirus can be “aerosolized” and a study published in early pandemic times, reported that the virus may be able to stay suspended in air under special circumstances, such as when infected people undergo intubation and other procedures.

The NIH study suggests that the SARS-CoV-2 coronavirus can be transmitted from one person to another simply by speaking. It states that large particles such as those expelled in a sneeze or cough remain airborne only briefly before settling because of gravity. However, just breathing or even talking softly produces small and much more numerous particles that are not heavy enough to settle.  These aerosols are further carried by air currents as mild as those generated by people walking around a room, drafts from open windows and doors, and vents that create air flows.

The large droplets that settle on surfaces can cause infection if people touch them and then touch their face. In that case, the droplets and any virus they carry are deposited in the upper respiratory tract, where there is a chance they can be removed through nasal secretions or swallowed before they cause an infection. The aerosols, in contrast, are so small (a few microns, or a couple ten-thousandths of an inch) that they can penetrate deep into the lungs, infecting cells.

The act of speaking generates oral fluid droplets that vary widely in size, and these droplets can harbor infectious virus particles. Whereas large droplets fall quickly to the ground, small droplets can dehydrate and linger as “droplet nuclei” in the air, where they behave like an aerosol and thereby expand the spatial extent of emitted infectious particles.

Anfinrud et al. have also illustrated how liquid droplets exhaled during speech can linger in the air. The large particles to which they refer remain airborne only briefly before settling because of gravity; these particles may pose a threat of infection if they are inhaled by persons close by as well as a contact hazard if they are transferred to another person’s nasal or oral passages. In this way, persons infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may contribute to the spread of the infection.

These reports therefore highlight the importance of wearing masks even when indoors, when interacting with people to prevent spread of infection.

UIN: 172HP85R

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Coronavirus

Everyone can benefit from a probiotic

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Probiotics are live microorganisms that can be consumed through foods such as curd/yoghurt and through supplemental forms. Studies show that the balance or imbalance of bacteria in your digestive system is linked to overall health and disease and probiotics promote a healthy balance of gut bacteria. They are used in managing and treating a variety of disease states. They are live microorganisms that are known to help improve gut health and include benefits for weight loss, digestive health, immune function and more.

However, current research suggests that probiotic supplements may not benefit everyone and should not be prescribed as a one-size-fits-all supplement. However, when taken in moderation according to your clinician’s advice, probiotics have a plethora of benefits reported in literature. Recent researches point out that changes in the gut microbiota would lead to a systemic inflammation that in different ways would reach the CNS modulating inflammatory pathways and especially the microglia, which could influence responses to treatments. Probiotics have therefore shown antidepressant responses and anti-inflammatory effects.

Studies also show probiotics promote mental flexibility and alleviate stress in healthy older adults, along with causing changes in gut microbiota. The probiotics exert their beneficial effects through modulation of host immune responses, maintain gut homeostasis and produce interferon thereby suppressing the virus induced cytokine storm.

Studies have also shown probiotics could significantly decrease the serum levels of high-sensitivity C-reactive protein and interleukin-6 and increase the serum albumin levels, upper arm circumference, and triceps skinfold thickness in patients undergoing peritoneal dialysis. 

What’s more – Probiotics may potentially have a beneficial role in preventing COVID-19. A recent study quotes, “The efficacy of probiotics has been studied previously on several respiratory tract viral infections. Probiotics comprise living microbes that upon oral administration benefit human health by reshaping the composition of gut microbiota. The close kinship of the gastrointestinal and respiratory tract suggests why the dysfunction of one may incite illness in others. The emerging studies suggest the capability of probiotics to regulate immune responses in the respiratory system.”

However, some studies showed that bacterial overgrowth in the small intestine related to probiotic use can lead to bloating, gas, and other adverse side effects. Additionally, some studies show that probiotic treatment following a course of antibiotics may delay the natural reconstitution of normal gut bacteria.

Therefore, it is recommended that you get a health checkup done starting from consulting your family physician who will advise if you need probiotic supplementation or not.

UIN: 220HP121R

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Coronavirus

Fully vaccinated individuals have lower travel risk but can be carriers

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While the debate for vaccinations continues across the globe, there is good news for those who have gotten vaccinated. Vaccination reduces risk of infection about 15-20 days after the dosing is complete. According to the new guidelines issued by the Centre for Disease Control (CDC), US, it is okay to travel domestically if you are fully vaccinated. Which means, you have completed the two doses of the two-dose vaccines or one dose of the J&J vaccine. Or as the CDC puts it’s, “you’re considered fully vaccinated 2 weeks after you receive the last required dose of the COVID-19 vaccine”.

While the US has issued statements that fully vaccinated domestic travelers don’t need to be tested before or after traveling unless their destination requires it, in India the rules for entering different states by air need to be checked well in time because a lot of states mandate a negative RT-PCR test for entry requirements. The Ministry of Health and Family Welfare in India has issued guidelines for International Travel and so has the Ministry of Civil Aviation for domestic travel on 30th March 2021. The DGCA has stated that surveillance across the airports in India will now be increased to ensure all COVID-19 protection protocols are taken into account.

On 13th April 2021, the Indian Railways has also confirmed that in view of the COVID-19 pandemic and related hygiene issues, they have also stopped service of cooked food and replaced the same with Ready to Eat (RTE) meals in trains. In addition, they have ensured that the COVID-19 related protective items such as masks, sanitizers, gloves etc. and takeaway bedroll kits/items, are available for sale through Multi-Purpose Stalls at Stations.

However, as is recommended, even fully vaccinated travelers should still follow the recommendations for traveling safely, including wearing a mask over your nose and mouth, staying 6 feet away from others and avoiding crowds, washing your hands often or using hand sanitizer, self-monitoring for COVID-19 symptoms after traveling, and isolate and get tested if symptoms develop

It is still very important to stay cautious and avoid potential exposures to the coronavirus whenever possible during travel, mainly because vaccination drives are still ongoing, and it is not recommended to travel unguarded since a lot of COVID-19 patients remain asymptomatic and can continue to spread the virus to other unvaccinated people. Also, no vaccine is a 100% fail safe yet, so a very small fraction of fully vaccinated people may still be at risk because emerging variants of the virus add a measure of uncertainty.

UIN: 219HP120R

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Real-world data shows 90% efficacy of Pfizer-BioNTech and Moderna COVID-19 vaccines

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Pfizer-BioNTech and ModernaCOVID-19 vaccines are messenger RNA (mRNA) vaccines but are not available in India yet. These COVID-19 vaccines have been shown to be effective in preventing symptomatic SARS-CoV-2 infection in randomized placebo-controlled Phase III trials.

A new study has shown that the Pfizer-BioNTech and Moderna-NIAID vaccines are effective at preventing infections in the real world. According to the CDC, the authorized mRNA COVID-19 vaccines are effective for preventing SARS-CoV-2 infection in real-world conditions. COVID-19 vaccination is recommended for all eligible persons.

 This study has been published March 29 in Morbidity and Mortality Weekly Report, a publication of the Centers for Disease Control and Prevention (CDC) in the USA. Study analysts have seen that the two-dose vaccine regimen was 90% effective at preventing infections 2 weeks after receiving the second dose.

This new study restores faith in the COVID-19 vaccines and has shown to be highly effective at preventing symptomatic and asymptomatic infections in real-world settings. As per the study results, this data is similar to those from earlier phase 3 clinical trials published in the journal New England Journal of Medicine, which found an efficacy of more than 90% for both the Pfizer-BioNTech and Moderna-NIAID vaccines. This is encouraging news for everyone across the globe because real-world effectiveness is often conservative and therefore, lower due to a number of factors.

Dr. James H. Conway, a pediatric infectious disease specialist at the University of Wisconsin-Madison, said what we really care about is a vaccine’s effectiveness — its real-world potential. He further added that such studies are not only proving how effective the vaccines can be for the studies and research data, but also show the true power of vaccines for real-world COVID-19 pandemic. Therefore, results published in the recent report from the CDC reassure that the vaccines are working as well as they are hoped to, in curbing the pandemic and in turn, stopping the spread of the virus.

Get vaccinated today!!

Read about the vaccination registration procedure here. For details about the type of vaccine and the dosing schedule, read here.

UIN: 210HP115R

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Coronavirus

Sputnik V submitted for DGCI approval for emergency use authorization

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On 13th April 2021, the Drug Controller General of India (DCGI) has approved the Sputnik V COVID-19 vaccine for emergency use.  After Covishield, developed by Oxford University-AstraZeneca and manufactured by the Serum Institute of India (SII), and Bharat Biotech’s Covaxin, this will be the third vaccine against the novel coronavirus that has been granted emergency use authorization in India.

India is the 60th country to approve Sputnik V—the rollout for which is likely to begin by end of April or early May.Currently, the Sputnik V will be imported before the local production kicks in. It is hoped that this emergency approval of Sputnik V will strengthen the government efforts to scale up vaccination, as India is battling the second wave of the pandemic with close to 1.4 lac cases reported on 12th April 2021.

India is also the leading production hub for Sputnik V, since its parent manufacturer company has reached agreements with the leading pharmaceutical companies in India such as Gland Pharma, Hetero Biopharma, Panacea Biotec, Stelis Biopharma, Virchow Biotech aimed at production of more than 850 million doses per year, sufficient to vaccinate more than 425 million people around the world.

The vaccine Sputnik V ranks second among coronavirus vaccines globally in terms of the number of approvals issued by government regulators and has an efficacy of 91.6%. It has shown encouraging results in protection against severe cases of COVID-19 as demonstrated by the data published in one of the leading medical journals The Lancet.

Sputnik V uses two different vectors (adenovirus 26 and adenovirus 5) for the two shots in a course of vaccination, providing immunity with a longer duration than vaccines using the same delivery mechanism for both shots.The safety, efficacy and lack of negative long-term effects of adenoviral vaccines have been proven by more than 250 clinical studies over two decades. There are no strong allergies caused by Sputnik V and with a storage temperature of 2-8 degrees Celsius, the vaccine can be stored in conventional refrigerators without the need to invest in additional cold-chain infrastructure.

UIN: 221HP122R

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37 vaccinated doctors are Covid-19 positive at Delhi’s Sir Gangaram Hospital

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Delhi recorded 7,437 fresh COVID-19 cases on April 8 — the highest single-day surge this year – with 24 more people dying due to the coronavirus infection, taking the death toll to 11,157, according to the Delhi Health Department. In what makes the situation worse, at least 37 doctors of Delhi’s Sir Gangaram Hospital have tested positive for coronavirus, as per the hospital sources on Thursday, 08th April 2021. These doctors had received both doses of COVID-19 vaccination during the first phase of the vaccination drive that was launched on 16th January 2021, thereby cautioning vaccinated individuals to be as cautious as ever to prevent the COVID-19 infection.

The hospital sources have confirmed that a majority of the COVID-19 positive doctors currently have mild symptoms – out of which, 32 doctors are in home isolation and 5 are admitted in the hospital.

Sir Ganga Ram Hospital in New Delhi has been at the forefront of the war against the pandemic that has crippled normal life for more than a year now. Here’s wishing all Corona Warriors a speedy recovery from Health Patrol!

UIN: 217HP119R

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