#EnviroHealthMatters Critical question 4: what is infectious dose and disease relationship? #MedTwitter @CarlosdelRio7 @IDSAInfo @theNASEM
The determination is for common cold, the ID50 (infectious dose for 50%) is between 13 or 63 viral particles. #EnviroHealthMatters
They use between 10 and 1000.
For a droplet, 100 TCID but for aerosols, 10 TCID is used. @EpiEllie
Immunity is given at 383K infectious for H1N1 due to pre existing immunity. #VaccinesWork #epitwitter #EnviroHealthMatters
Sex, age, and receptor abundance abudance. COVID uses ACE2 using TMPRSS2 #EnviroHealthMatters
ACE2 receptors is found to go up by age according to some reports. @bethlinas @angie_rasmussen #epitwitter #EnviroHealthMatters
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