All articles tagged with #reinfection
A large study finds that children and teenagers are twice as likely to develop Long Covid after a second COVID-19 infection compared to the first, indicating increased long-term health risks from reinfections.
A study finds that developing shingles within a year after COVID-19 increases the risk of heart attacks, kidney issues, and COVID-19 reinfection, especially in vulnerable groups, suggesting shingles may be a marker for systemic health risks post-COVID.
As the U.S. experiences a summer wave of COVID-19 infections, many Americans are noticing different symptoms during reinfections. The virus's constant evolution and changes in individual immune responses contribute to this variation. Common symptoms now include congestion, runny nose, headache, sore throat, and coughing, with gastrointestinal issues becoming more prevalent. Vaccinated individuals generally experience milder cases.
The Covid variant JN.1, which accounts for the majority of U.S. cases, raises questions about protection from reinfection and vaccines. Individuals who had Covid during the summer may still have some protection, but factors such as age, underlying conditions, and vaccination history play a role. While there is disagreement among scientists about the duration of this protection, it is generally believed to last between two to six months.
The WHO warns that COVID levels are 2 to 19 times higher than reported globally, citing wastewater data, and expresses concerns about the potential dangers of repeat COVID infection and the long-term effects of the virus. The organization emphasizes the ongoing impact of the pandemic, with hospitalizations and deaths continuing to rise, and highlights the underreporting of data from many countries. Additionally, the WHO raises concerns about the lack of preparedness for a more severe variant of the virus and urges continued vigilance and mitigation measures to address the evolving situation.
A study published in The Lancet Respiratory Medicine found that 54% of COVID-19 survivors in a Chinese cohort still experienced at least one symptom three years after infection, with higher rates of reinfection and pneumonia observed after the emergence of the Omicron variant. The study also revealed that individuals with long COVID at two years had significantly higher rates of reinfection and new or worsened symptoms after Omicron infection compared to those without long COVID. While organ function generally improved over time, individuals with severe long COVID symptoms, abnormal organ function, or limited mobility require urgent attention in future clinical practice and research. The study highlights the need for consistent definitions of long COVID and further research on the developmental outcomes and chronic diseases associated with COVID-19.
Despite being fully vaccinated, a small number of individuals have experienced multiple reinfections with COVID-19. Some individuals have reported being infected with the virus up to five or six times, raising concerns about their predisposition to the disease. These cases highlight the need for continued research and understanding of breakthrough infections and the effectiveness of vaccines against emerging variants.
Research suggests that reinfection with Covid-19 increases the risk of developing long Covid, regardless of whether it is the first, second, or subsequent infection. Long Covid is a complex condition with a range of symptoms, including fatigue, brain fog, musculoskeletal pain, shortness of breath, gastrointestinal disorders, and dysautonomia. Recovery from long Covid is rare, and there is a need for further research to understand and find effective treatments for this persistent condition.
Repeat COVID-19 infections are relatively rare, but can cause lasting damage to the immune system and exacerbate symptoms of long COVID. Studies suggest that reinfections tend to be less risky than the initial one, but those who are most vulnerable to severe disease during a first infection continue to be the most vulnerable. Even mild cases of COVID-19 can cause lasting damage to the immune system, which could make people more susceptible to other kinds of infection. The significance of immunological changes seen so far isn’t entirely clear, and the landscape of COVID-19 immunity is becoming increasingly complex.
Mexican President Andres Manuel Lopez Obrador has tested positive for COVID-19 for the third time, highlighting the risk of reinfection. Studies suggest that most Americans have been infected with COVID at least once, but a growing number have been infected multiple times. While being fully vaccinated and getting the booster shot can lower the risk of reinfection, studies have shown that immunity does wane over time. The risk of reinfection is highest for those who are vulnerable to serious complications from COVID. The role of variants is also important, as a new variant could change how likely reinfection is.
As COVID-19 continues to circulate in various forms, people may wonder what happens when they get infected again. A meta-analysis found that protection against severe disease from prior infection with COVID-19 remains high for 10 months, but protection against reinfection is lower and declines rapidly with the omicron variant. Experts recommend considering immunity as two parts: protection against severe disease and protection against infection. While the risk of severe disease or hospitalization depends on factors like age and medical conditions, people should keep track of when they last had something that stimulated their immunity. The risk for long COVID symptoms may increase with reinfection, and people who need treatment the most may not be getting it. Boosters and treatments are available for eligible individuals, and experts caution that a new dominant variant that causes more severe disease or has immune escape is a concern.