Articles on Transmissibility
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The current triple epidemic of respiratory viruses is affecting all age groups, prompting comparisons with the pre-COVID-19 era.
None of our authors can see the future, but many do have expertise that offers insights about what’s reasonable to expect.
Careful lab work will complement public health data as researchers worldwide focus on omicron, asking questions about contagiousness, severity of disease and whether vaccines hold up against it.
Preliminary evidence suggests Lambda has an easier time infecting our cells and is a bit better at dodging our immune systems. But vaccines should still do a good job against it.
The Delta variant: What it is, where it came from, why it’s different and whether COVID-19 vaccines can prevent it.
Pathogens typically face a trade-off between virulence and transmission. But that’s not the case with SARS-CoV-2.





