After going through the latest scientific studies on the novel coronavirus and efforts to explore its treatment, the following article discusses the fears of vaccines being contagious and causing deaths.
The US Centers for Disease Control and Prevention (CDC) reported “breakthrough” infections at the rate of 0.01% of the vaccinated people. Roughly 101 million Americans had been fully vaccinated against Covid-19 till April 30.
CDC collected genetic data for virus samples 555 breakthrough infections, in which roughly 27% of breakthrough infections were asymptomatic, while in 2% of cases, patients died.
Mutated variants of the coronavirus accounted for 64% of the breakthroughs. A separate study on medRxiv reported that among 20 fully-vaccinated healthcare workers with breakthrough Covid-19 cases, all were infected with variants.
An earlier study had linked breakthrough infections with low viral loads, suggesting low transmission risks, but “we found many samples in our breakthrough cohort with high viral load,” said coauthor Pavitra Roychoudhury of the University of Washington.
“Our work suggests that not all breakthrough infections are at low risk of initiating transmission and, if they did, these infections could lead to the continued spread of variants of concern, particularly in areas with low vaccination rates.”
Some of the anti-vaccine activists claimed that Covid-19 shots from Pfizer/BioNTech, and Moderna will damage the placenta and contaminate breast milk, which had no basis and is refuted by new data.
The vaccines deliver synthetic messenger RNA (mRNA), which instructs the body to make proteins that in turn induce antibodies to attack the coronavirus. The report posted that none of the breastfeeding women had vaccine mRNA in their milk.
“This small study tells us that it is unlikely that Covid-19 mRNA vaccination will cause complications in pregnancy or fertility through cross-reacting antibodies against syncytin-1, or for breastfed infants through breast milk.”The authors said.
Another study suggests that Covid-19 survivors with lingering symptoms can safely be vaccinated against the virus. Researchers tracked 36 individuals for said hypothesis and found out that participants had at least one lingering symptom, and half had at least four symptoms after spending eight months in hospital.
One month after vaccination, 71% of their symptoms remained unchanged, 23% of their symptoms were improved, and 6% of symptoms had worsened. There was no significant worsening in quality-of-life or mental well-being, and outcomes were similar with both vaccines, researchers reported.
A trial involving 3,732 adolescents aged 12-17 were vaccinated with Moderna’s vaccine and it was found 100% effective. The participants who received two doses did not get Covid-19 but only four who received a placebo. After only one dose, the vaccine was 93% effective in this age group, Moderna said.
Side effects like headache, fatigue, body aches, and chills, were similar to those reported in earlier studies.
Moderna plans to submit the findings to regulators for emergency use authorization in June. Dr. Amesh Adalja of the Johns Hopkins Center for Health Security said even if vaccines turn out to be the cause, it is important to consider the risk-benefit ratio.
“Vaccines are going to unequivocally be much more beneficial,” outweighing any low risk of myocarditis.He said.