COVID-19 question set: name, symptoms, treatments, policy

Twelve questions run from terminology to virology to public policy to economics, and answering them at a uniform depth produces a flat post that treats defining an acronym as equivalent to explaining multi-organ pathophysiology. Weight them instead. The first question takes a sentence: COVID-19 is coronavirus disease 2019, and the causative virus is SARS-CoV-2, which is worth saying because the two are constantly conflated and getting them apart at the start signals that you know what you are doing. The questions about respiratory and systemic effects, and about which treatments carry regulatory approval, are the ones that reward real work. Group the twelve into terminology, epidemiology, clinical, policy and economic clusters, answer each cluster properly, and the post gains a structure the list does not supply. The list is not a structure, and supplying one is part of what is being assessed. Answer the terminology question first and briefly, then spend the room where it is deserved.

Two questions carry the phrase as of May 1, which fixes them to a specific moment, and this is the trap in the assignment. The travel and testing landscape then bears little resemblance to now, so if you write current information you will have answered a different question, and if you write period information without saying so you will look wrong. Handle it explicitly: state that these two answers describe the position as of the stated date, source them from material published around then, and say in a clause how the position subsequently changed. That reads as historical accuracy rather than as being out of date. The same caution applies to the warm weather question and the vaccine question, both of which have since been answered by events, and saying so is a strength rather than a digression. Being explicit about the date costs one clause and saves the whole answer.

The clinical questions have a shape worth following. The virus enters through the respiratory tract and binds a receptor that is widely distributed beyond the lung, which is the mechanism that explains why the illness was not confined to breathing. In the lungs, damage to alveolar cells and the resulting inflammatory response impair gas exchange, which is why hypoxaemia rather than obstruction is the characteristic problem and why severe cases needed oxygen and ventilation rather than bronchodilators. Beyond the lung, the documented effects include a strong tendency to clotting, cardiac involvement, kidney injury, gastrointestinal and neurological features. The severity spectrum runs from asymptomatic infection through mild illness to critical disease, and saying what proportion sat where, with a source, answers the mild-to-severe question far better than a symptom list. That mechanism is also what explains why the illness reached organs well beyond the lung. Say what proportion of infections sat in each severity band and where the figure comes from.

The treatment question is precisely worded and precision is what earns the marks: it asks what is being tried that has the approval of the World Health Organization, the FDA or the CDC, other than supportive measures. So distinguish the categories that were repeatedly muddled in public discussion. Full approval, emergency use authorisation, and recommendation within a clinical guideline are three different things with different evidentiary bases. A drug under investigation in a trial has none of them. Several agents widely discussed at the time never obtained any, and at least one authorisation was later revoked when trial evidence arrived. Naming which agents had which status, and noting that status changed as evidence accumulated, is the most substantive thing you can do here and it demonstrates the distinction the question is asking for. Getting these three categories right is the single most substantive thing available in this post.

On execution, the policy and economic questions should be answered with specifics rather than impressions: name the relief legislation, the mechanisms used for unemployment and business support, and the division between federal and state authority, which is what made responses vary so much by state. Use primary agency sources, the CDC, the FDA and the WHO, rather than news summaries, since three of the twelve questions turn on what those bodies actually said. Cite in text, and where a question has since been settled, distinguish clearly between what was known at the time and what is known now. Close by identifying which of the twelve you found hardest to answer with confident sourcing, since that invites a useful exchange with peers rather than agreement. Say which question you found hardest to source, and why the sourcing was difficult. That closing question is more useful to your peers than a summary of what you already wrote.