Background Atebubu-Amantin District in Bono East region of Ghana had recorded measles vaccination coverages above 95% since 2015. However, the district experienced measles outbreak in ...

Background In 2022, 30130 measles cases were reported with a fatality rate of 1.6% in Africa. In Cameroon the incidence of measles has doubled since 2021 with one-sixth of health distr...

Background The development and use of COVID-19 vaccine has been a global target to effectively control the pandemic. Since March 2021, Uganda has been publicizing and implementing COVI...

Background Bantul is a district with the second-highest number of COVID-19 cases in Yogyakarta Province. On January 30, 2022, Bantul 1 Public Health Center (PHC) reported a case of a s...

Background Covid-19 can generate serious problems in the population deprived of liberty (PPL), due to transmissibility, dissemination and potential severity. In Brazil, the high risk o...

Background The Coronavirus Disease 2019(COVID-19) constitutes a global public health threat and has claimed the lives of over 6 million people. Understanding predictors of COVID-19 dea...

Background The closure of educational institutions was one of the containment strategies for COVID-19, assuming that children had a high probability of acquiring asymptomatic or very m...

Background During the fifth wave of the COVID-19 pandemic in Montreal, caused by the Omicron variant, the weekly incidence of COVID-19 cases and hospitalizations reached its highest. T...

Background In 2021, the coastal state of Kerala had high test positivity, whilst COVID-19 cases decreased in other parts of India. Reinfections are an important contributor to persiste...

Background Less than a year after the WHO announced a COVID-19 pandemic, the Pfizer-BioNTech was the first mRNA vaccine to be approved for mass use. However, vaccine hesitancy is still...

Background Peru has the highest mortality from COVID-19 globally, and the start of vaccination in February-2021 have given a lot of hope in the midst of the rise of the 2nd wave of the...

Background Four human influenza viruses circulate currently, requiring annual vaccine updates to match rapid viral evolution. However, vaccine effectiveness (VE) estimates against cont...

Background In July/2021, the Darwin strain of Influenza A (H3N2) virus was identified in Australia. In December/2021, there was an increase of flu syndrome cases among workers from a l...

Background South Africa saw an estimated 10 million mild influenza cases in 2015. No influenza season has been observed since the COVID-19 pandemic started in 2020. In November 2021, i...

Background Influenza is one of the leading causes of illness and death in people of all ages. Nigeria established the National Influenza Sentinel Surveillance (NISS) in 2008. We analyz...

Background Vaccines against COVID-19 are critical to controlling COVID-19. A successful vaccination campaign requires high vaccine uptake. Knowledge of people’s perceptions towards vac...

Background On 9th March 2021, 18 people with fever, flu and shortness of breath reported at a local hospital. All attended a wedding ceremony and got positive for COVID-19. We carried ...

Background Current COVID-19 policy in China, “zero tolerance for local transmission”, implies stopping all imported outbreaks and maintaining elimination of SARS-CoV-2. There has been ...

Background Knowledge of real-world effectiveness of COVID-19 vaccines is vital for policy decisions on pandemic control and understanding the future of the pandemic. Vaccination in Ind...

Background A SARS-CoV-2 Delta (B.1.617.2) variant outbreak associated with an international airport occurred in Nanjing on 20 July 2021. This study aimed to elucidate the transmission ...

Background One of the main goals of COVID-19 vaccination is to reduce occurrence of severe disease and death. COVID-19 vaccination was introduced in Azerbaijan in 2021. We assessed the...

Background In August 2021, the U.S. Coast Guard notified the County of San Diego Health and Human Services of persons with COVID-19 symptoms on a 9-day charter fishing trip. We conduct...

Background Blackwater fever (BWF) is malaria complication in which red blood cells burst, releasing hemoglobin into blood vessels and urine; recurrent episodes requiring repeated blood...

Background On the 21st of July 2021 Cairo Directorate of Health was informed of a patient with high fever and malaise recently returned from Nigeria. The patient was quarantined at inf...