New research indicates that human immune system cells are storing information about the coronavirus so they can fight it off again.
Tag: Immune System
Moderna and Pfizer Begin Late-Stage Coronavirus Vaccine Trials
The studies each aim to enroll 30,000 people and determine whether the vaccines are safe and effective.
Your Coronavirus Antibodies Are Disappearing. Should You Care?
Declining antibody levels do not mean less immunity, experts say. Besides, two widely used tests may detect the wrong antibodies.
Viking Age Smallpox Complicates Story of Viral Evolution
An extinct version of the smallpox virus dating to 1,400 years ago prompts speculation about viruses becoming more lethal over time.
Breakthrough Drug for Covid-19 May Be Risky for Mild Cases
That study about dexamethasone has arrived with a big asterisk: While it appears to help severely ill patients, it harms others.
Decades-Old Soviet Studies Hint at Coronavirus Strategy
A married pair of virologists in Moscow tested a vaccine on their own children in the 1950s. Now, a side effect they found is sparking new hope for a defense against the coronavirus.
You May Have Antibodies After Coronavirus Infection. But Not for Long.
Antibodies to the virus faded quickly in asymptomatic people, scientists reported. That does not mean immunity disappears.
Genes May Leave Some People More Vulnerable to Severe Covid-19
Geneticists have turned up intriguing links between DNA and the disease. Patients with Type A blood, for example, seem to be at greater risk.
Coronavirus Vaccine Shows Promising Early Results in China
A trial with 108 participants suggests the vaccine is safe and may be moderately effective. But experts noted that the approach has failed in the past.
A New Entry in the Race for a Coronavirus Vaccine: Hope
Scientists are increasingly optimistic that a vaccine can be produced in record time. But getting it manufactured and distributed will pose huge challenges.