Naked Science Forum

Life Sciences => Physiology & Medicine => COVID-19 => Topic started by: Lewis Thomson on 26/01/2022 11:19:59

Title: Does gastric covid exist?
Post by: Lewis Thomson on 26/01/2022 11:19:59
Carol has become concerned about this situation.

"I believe I’ve had Gastric Covid. We aren’t testing for it in this country. Is it a thing and should it be more in the news?"

Can you help them?
Title: Re: Does gastric covid exist?
Post by: Colin2B on 26/01/2022 13:20:46
About one in five people who test positive for COVID-19 have at least one gastrointestinal symptom, eg diarrhoea, vomiting, or stomach pain.
It isn’t a separate disease, but COVID does affect the organs of individuals differently.
If the symptoms are not clearing up or are causing too much discomfort, do go and see your GP.
Title: Re: Does gastric covid exist?
Post by: evan_au on 27/01/2022 08:45:40
The SARS-COV2 virus can infect any cell which expresses the ACE2 receptor. This includes the small intestine and colon.
See: https://en.wikipedia.org/wiki/Angiotensin-converting_enzyme_2
...and look at the RNA expression pattern to see which organs express this gene.

If SARS-COV2 can infect your gut, it is likely to cause gastro-intestinal illness. This has made PCR testing of sewage an effective way to detect community transmission of COVID before people start coming forward with symptoms.
https://en.wikipedia.org/wiki/Wastewater_surveillance

But this virus has (so far) spread more effectively through respiratory route than through the fecal-oral route.
- People were fairly used to washing their hands
- People in Western countries were initially unfamiliar with mask-wearing (although it was already fairly common in Asian countries)