Researchers found a link between mild Covid infections impaired hippocampal neurogenesis, decreased oligodendrocytes and myelin loss in mice one week after infections persisting until at least seven weeks leading them to conclude that even those with mild symptoms in the acute phase may experience lasting cognitive dysfunction.

​​The number of recent influenza cases is typical for this time of year, but the last time flu cases reached this level was before the coronavirus pandemic began.

Covid accounted for 14 percent of all deaths in the United States from March 2020 until all adults became eligible for the vaccine in April, compared with 11 percent of deaths since then.

In our 2020 commissioned survey, 60% of respondents said that current public investment in mental health research is not enough. This is a 9% increase, up from 51% in 2018.

Nepal has halted Covid-19 vaccinations in children ages 12 to 17 in eight districts because of a shortage of syringes.

Nicholas Christakis is director of the Human Nature Lab at Yale University and author of the bestseller "Apollo’s Arrow." He speaks with Hari Sreenivasan about the next phase of the pandemic based on previous pandemics.

Molnupiravir was associated with a decreased the risk of hospitalization from Covid-19 by only 30%, compared to a reduction of almost 90% with Pfizer's PAXLOVID. The FDA advisory committee also limited its use in non-pregnant adults because of their concerns about the potential risk of mutations in human DNA.

A computational biologist thinks potentially half the globe may contract Omicron over the coming weeks and months.

The omicron wave appears to have peaked and is already subsiding in South Africa, with a relatively minor impact on their healthcare system. However, the positive rate is still around 29%, suggesting high circulation among their population. other fluctuations.

Omicron is now the most common variant among new Covid cases in the U.S., accounting for nearly three-quarters of new infections.

Research shows an increased potential for spread through aerosols.

Pfizer and BioNTech are testing a third dose of a Covid vaccine for young children. The third dose is a lower amount than the adult doses.

The agency’s advisers cited concerns about the increased incidence of a rare but potentially serious blood clotting condition among those who received the company’s shot.

A new CDC study found that the percentage of obese children and teens increased to 22%, compared to 19% before the pandemic. It also found that expected annual weight gain ranged from 5 to 15 pounds.

This report examines attitudes and views of parents as children head back to school amidst the rise in COVID-19 cases due to the delta variant. Nearly half of parents of children ages 12-17, who ar…

The anti-vax fertility panic, explained.

Cases have been reported in the United States, Colombia, Japan, South Korea and parts of Europe.

Coronavirus cases that send vaccinated people to the hospital or cause death have been relatively rare, a New York Times analysis of state data shows.

Provincetown, Mass., the quirky community at the tip of Cape Cod, thought it was safe to return to prepandemic partying. It wasn’t.

In a Times simulation, we modeled Delta-driven Covid outbreaks in two communities, one with a high vaccination rate and another with a low rate. Their levels of serious illness and death were starkly different.

As another heat wave builds in the U.S. Northwest, a New York Times analysis has found that recent scorching temperatures in the area may have been more lethal than officially reported.

A variant discovered in Colombia is now showing up in South Florida hospitals. Time and vaccination efforts will determine how quickly it could spread, experts say.

Infections in vaccinated Americans are rare, compared with those in unvaccinated people, the document said. But when they occur, vaccinated people may spread the virus just as easily.

In communities with growing caseloads, vaccinated and unvaccinated people should return to wearing masks indoors in public areas, health officials said.

Some anti-vaccination groups on Facebook are changing their names to euphemisms like “Dance Party” or “Dinner Party,” and using code words to fit those themes.

Cases of the variant have popped up in several states. But neither the WHO nor the CDC considers it a variant of concern, and the fast-spreading delta variant continues to dominate U.S. cases.

Objective To estimate changes in life expectancy in 2010-18 and during the covid-19 pandemic in 2020 across population groups in the United States and to compare outcomes with peer nations. Design Simulations of provisional mortality data. Setting US and 16 other high income countries in 2010-18 and 2020, by sex, including an analysis of US outcomes by race and ethnicity. Population Data for the US and for 16 other high income countries from the National Center for Health Statistics and the Human Mortality Database, respectively. Main outcome measures Life expectancy at birth, and at ages 25 and 65, by sex, and, in the US only, by race and ethnicity. Analysis excluded 2019 because life table data were not available for many peer countries. Life expectancy in 2020 was estimated by simulating life tables from estimated age specific mortality rates in 2020 and allowing for 10% random error. Estimates for 2020 are reported as medians with fifth and 95th centiles. Results Between 2010 and 2018, the gap in life expectancy between the US and the peer country average increased from 1.88 years (78.66 v 80.54 years, respectively) to 3.05 years (78.74 v 81.78 years). Between 2018 and 2020, life expectancy in the US decreased by 1.87 years (to 76.87 years), 8.5 times the average decrease in peer countries (0.22 years), widening the gap to 4.69 years. Life expectancy in the US decreased disproportionately among racial and ethnic minority groups between 2018 and 2020, declining by 3.88, 3.25, and 1.36 years in Hispanic, non-Hispanic Black, and non-Hispanic White populations, respectively. In Hispanic and non-Hispanic Black populations, reductions in life expectancy were 18 and 15 times the average in peer countries, respectively. Progress since 2010 in reducing the gap in life expectancy in the US between Black and White people was erased in 2018-20; life expectancy in Black men reached its lowest level since 1998 (67.73 years), and the longstanding Hispanic life expectancy advantage almost disappeared. Conclusions The US had a much larger decrease in life expectancy between 2018 and 2020 than other high income nations, with pronounced losses among the Hispanic and non-Hispanic Black populations. A longstanding and widening US health disadvantage, high death rates in 2020, and continued inequitable effects on racial and ethnic minority groups are likely the products of longstanding policy choices and systemic racism. Data sharing: Requests for additional data and analytic scripts used in this study should be emailed to RKM (Ryan.Masters@colorado.edu).

The decline, which is the largest seen in a single year since World War II, reflects the pandemic’s sustained toll on Americans, particularly the disproportionate impact of covid-19 on communities of color.