Verification of the Cut-off Value of the Reticulocyte Hemoglobin Content to Diagnose Iron Deficiency

Iron deficiency anemia(IDA)is a common nutrient deficiency,and it has become a global public health problem identified by the World Health Organization.Studies have shown that IDA remains prevalent in both developing and developed countries,such as Australia and China,and that IDA may be associated with poorer cognitive and neurophysiologic maturation in early life and causes labor productivity losses,developmental delays,men tai and behavior disorders,and peri natal complicati ons in pregna nt and preme nopausal women[1].

Diagnosis,treatment and prevention of severe acute respiratory syndrome coronavirus 2 infection in children:experts'consensus statement updatedforthe Omicron variant

It has been more than 3 years since the novel coronavirus(SARS-CoV-2)pandemic raged globally.The coronavirus disease 2019(COVID-19)has greatly influenced human society.According to data from the World Health Organization(WHO),there were over 656 million confirmed cases of COVID-19 in the world as of January 1,2023,including over 6.6 million deaths[1].

Diagnosis, treatment, and prevention of 2019 novel coronavirus infection in children: experts' consensus statement

Since the outbreak of 2019 novel coronavirus infection (2019-nCoV) in Wuhan City,China,by January 30,2020,a total of 9692 confirmed cases and 15,238 suspected cases have been reported around 31 provinces or cities in China.Among the confirmed cases,1527 were severe cases,171 had recovered and been discharged at home,and 213 died.And among these cases,a total of 28 children aged from 1 month to 17 years have been reported in China.For standardizing prevention and management of 2019-nCoV infections in children,we called up an experts' committee to formulate this experts' consensus statement.This statement is based on the Novel Coronavirus Infection Pneumonia Diagnosis and Treatment Standards (the fourth edition) (National Health Committee) and other previous diagnosis and treatment strategies for pediatric virus infections.The present consensus statement summarizes current strategies on diagnosis,treatment,and prevention of 2019-nCoV infection in children.

Expert consensus on COVID-19 vaccination in children

Coronavirus disease 2019(COVID-19)is a public health disaster that has not been encountered for a hundred years.On January 12,2020,the World Health Organization(WHO)confirmed and named the coronavirus which caused unexplained pneumonia as 2019 novel coronavirus(2019-nCoV).Since then,the disease caused by this virus had been named as coronavirus disease 2019(COVID-19).On February 11,2020,the International Committee on Taxonomy of Viruses announced that the English name of the novel coronavirus was severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)[1].At present,SARS-CoV-2 infection is still rampant worldwide.As of September 10,2021,there were about 222 million confirmed cases of COVID-19 and more than 4.5 million deaths worldwide[2].According to the American Centers for Disease Control and Prevention,by July 29,2021,4.19 million pediatric COVID-19 cases had been reported in the United States。