Related Experiment Video
Updated: Oct 26, 2025
03:53
Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
Published on: November 10, 2023
1.5K
Reinfection in COVID-19: A scoping review
Lancelot Mark Pinto1, Viral Nanda2, Ayesha Sunavala3
1Consultant Pulmonologist, P.D. Hinduja Hospital and Medical Research Center, Mumbai, India.
Medical Journal, Armed Forces India
|August 2, 2021
Summary
COVID-19 reinfections are concerning as they challenge assumptions about long-term immunity. This review examines available literature on SARS-CoV-2 reinfections and discusses their implications.
Area of Science:
- Infectious Diseases
- Immunology
- Public Health
Background:
- Reports of COVID-19 reinfections are increasing globally.
- This phenomenon raises concerns regarding the duration of immunity following infection or vaccination.
- Initial assumptions for disease modeling and control strategies relied on the premise of lasting immunity.
Purpose of the Study:
- To conduct a scoping review of the existing literature on COVID-19 reinfections.
- To discuss the broader implications of SARS-CoV-2 reinfections for public health and disease management.
Main Methods:
- Systematic literature search for studies reporting COVID-19 reinfections.
- Synthesis of findings from identified studies.
- Qualitative analysis of the implications of reinfection data.
Main Results:
- The review identified and analyzed documented cases and studies of COVID-19 reinfections.
- Evidence suggests that reinfections are occurring across various populations.
- The frequency and severity of reinfections may vary depending on factors like viral variants and immune status.
Conclusions:
- COVID-19 reinfections are a significant epidemiological event.
- The occurrence of reinfections necessitates a re-evaluation of immunity duration and the effectiveness of current control measures.
- Further research is crucial to understand the mechanisms and impact of SARS-CoV-2 reinfections.
Related Concept Videos
01:26Factors Affecting the Risk of Infection
12.8K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.8K
00:57Viral Recombination
24.1K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
24.1K
01:22Healthcare Associated Infections II: Preventive Measures
3.2K
Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
3.2K
01:26Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic
4.9K
Healthcare-associated infections (HAIs) occur in a healthcare facility while a person receives care for another ailment. This category also includes work-related infections among healthcare staff.
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies.
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies.
4.9K
01:20Infection
9.4K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
9.4K
01:25Transmission-based Precautions II: Airborne and Protective Environment
1.6K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.6K