{"generator":"GNU social 2.0.2-dev","title":"Conversation","totalItems":1,"items":[{"actor":{"id":"https:\/\/ohai.social\/users\/thatkatharine","displayName":"katharine","status_net":{"avatarLinks":[{"url":"https:\/\/gnusocial.jp\/avatar\/159365-original-tmp20241202000101.webp","rel":"avatar","type":"image\/webp","width":400,"height":400},{"url":"https:\/\/gnusocial.jp\/avatar\/159365-96-20241202040417.webp","rel":"avatar","type":"image\/webp","width":96,"height":96},{"url":"https:\/\/gnusocial.jp\/avatar\/159365-48-20241202040417.webp","rel":"avatar","type":"image\/webp","width":48,"height":48},{"url":"https:\/\/gnusocial.jp\/avatar\/159365-24-20241202040417.webp","rel":"avatar","type":"image\/webp","width":24,"height":24}],"profile_info":{"local_id":"159365"}},"image":{"url":"https:\/\/gnusocial.jp\/avatar\/159365-96-20241202040417.webp","rel":"avatar","type":"image\/webp","width":96,"height":96},"objectType":"person","summary":"curious. crafter. creative. imaginary friend. iridescent beatnik. mentholated curmudgeon. sparkling observationalist. childfree by choice. hoh. covid avoidant. reluctant consumer. unmonetizeable.avatar\/pfp: silver-haired woman in mod teal top wearing silver and teal respiratorheader: text reads &quot;Scio Me Nihil Scire&quot; (Latin for &quot;I know that I know nothing&quot;) in the style of the NBC &quot;The More You Know&quot; logohttps:\/\/justmytoots.com\/@thatkatharine@ohai.social","url":"https:\/\/ohai.social\/@thatkatharine","portablecontacts_net":{"preferredUsername":"thatkatharine","displayName":"katharine","note":"curious. crafter. creative. imaginary friend. iridescent beatnik. mentholated curmudgeon. sparkling observationalist. childfree by choice. hoh. covid avoidant. reluctant consumer. unmonetizeable.avatar\/pfp: silver-haired woman in mod teal top wearing silver and teal respiratorheader: text reads &quot;Scio Me Nihil Scire&quot; (Latin for &quot;I know that I know nothing&quot;) in the style of the NBC &quot;The More You Know&quot; logohttps:\/\/justmytoots.com\/@thatkatharine@ohai.social"}},"content":"<p>In doing risk assessment, we consider exposure time and quality of PPE, but what we still can\u2019t quite know is size and impact of infectious dose. Like, we can only guess how much virus is circulating in the rebreathed air based on CO2 measurements, but how much of that does one need to breathe in before reaching an \u201cinfectious dose\u201d? How much or little can one inhale of any toxin before it takes hold and does its damage? Risk math can\u2019t determine the susceptibility of any given person.<\/p>","generator":{"id":"tag:gnusocial.jp,2026-08-04:notice-source:ActivityPub","objectType":"application","status_net":{"source_code":"ActivityPub"}},"id":"https:\/\/ohai.social\/users\/thatkatharine\/statuses\/115798945073318052","object":{"id":"https:\/\/ohai.social\/users\/thatkatharine\/statuses\/115798945073318052","objectType":"note","content":"<p>In doing risk assessment, we consider exposure time and quality of PPE, but what we still can\u2019t quite know is size and impact of infectious dose. Like, we can only guess how much virus is circulating in the rebreathed air based on CO2 measurements, but how much of that does one need to breathe in before reaching an \u201cinfectious dose\u201d? How much or little can one inhale of any toxin before it takes hold and does its damage? Risk math can\u2019t determine the susceptibility of any given person.<\/p>","url":"https:\/\/ohai.social\/@thatkatharine\/115798945073318052","status_net":{"notice_id":null}},"to":[{"objectType":"http:\/\/activitystrea.ms\/schema\/1.0\/collection","id":"http:\/\/activityschema.org\/collection\/public"}],"status_net":{"conversation":"tag:gnusocial.jp,2025-12-28:objectType=thread:nonce=1e1439ff41e20bf8","notice_info":{"local_id":"11805272","source":"ActivityPub"}},"published":"2025-12-28T20:02:13+00:00","provider":{"objectType":"service","displayName":"GNU social JP","url":"https:\/\/gnusocial.jp\/"},"verb":"post","url":"https:\/\/ohai.social\/@thatkatharine\/115798945073318052"}],"links":[{"url":"https:\/\/gnusocial.jp\/conversation\/5999560","rel":"alternate","type":"text\/html"}]}