Kieran Walsh, clinical director at BMJ, asks editors from BMJ Learning and BMJ Best Practice to summarise the latest clinical guidance related to covid-19.

Matt Castleden updates us on the clinical use of antibody testing.

And Abigail Davis discusses the impact of the pandemic on other conditions, including mental health and other infectious diseases. She also covers recommendations for influenza vaccination.

For more, see:

BMJ Best Practice's topic on management of coexisting conditions in the context of COVID-19: bestpractice.bmj.com/topics/en-gb/3000190

BMJ Best Practice's topic on covid-19: bestpractice.bmj.com/topics/en-gb/3000168

BMJ Learning module on COVID-19 rapid guideline on critical care (NICE): new-learning.bmj.com/course/10065100

BMJ Learning covid-19 in primary care module: new-learning.bmj.com/course/10065230

BMJ Practice Pointer article: Testing for SARS-CoV-2 antibodies: bmj.com/content/370/bmj.m3325

WHO guidance on Diagnostic testing for SARS-CoV-2: who.int/publications/i/item/diagnostic-testing-for-sars-cov-2

CDC Interim guidance on antibody testing: cdc.gov/coronavirus/2019-ncov/lab/resources/antibody-tests-guidelines.html

CDC Influenza vaccination: cdc.gov/flu/professionals/acip/index.htm

Public Health England annual flu programme: gov.uk/government/collections/annual-flu-programme