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Articles on Disease surveillance

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Nigeria must increase its testing capacity to deal with rising COVID-19 cases Olukayode Jaiyeola/NurPhoto via Getty Images

Nigeria isn’t ready to deal with rising COVID-19 cases

Nigeria must increase its testing capacity and do more genomic studies to deal effectively with the Delta variant of COVID-19.
Sequencing the genetic code of virus samples taken from COVID-19 patients reveals how SARS-CoV-2 is spreading and changing. Nate Langer/UPMC

Genomic surveillance: What it is and why we need more of it to track coronavirus variants and help end the COVID-19 pandemic

The US lags in testing coronavirus samples from COVID-19 patients, which can help track the spread of the virus and the emergence of new variants. But labs are ramping up this crucial surveillance.
Sewage samples mixed with magnetic beads and loaded onto the liquid-handling robot for viral concentration. C. H. Sheikhzadeh @ HOMA Photographic Art

Sewage-testing robots process wastewater faster to predict COVID-19 outbreaks sooner

A community’s wastewater can predict coronavirus cases that haven’t yet been diagnosed. The quicker that information is known, the better.
Stacked disasters – like a winter storm that damages a water system during a pandemic – can provide lessons for the next time around. AP Photo/Rogelio V. Solis

5 strategies to prepare now for the next pandemic

Shoring up surveillance and response systems and learning lessons from how the COVID-19 pandemic unfolded will help the world be ready the next time around.
Genomic sequencing can help in understanding viruses. Gio.tto/Shutterstock

Africa joins the race to trace COVID-19 with genomics

The variation captured in these genomes, when compared to genomes sampled elsewhere, provides a fingerprint that might be associated with a particular virus and a particular cluster of transmission.
Viral sequences related to known human coronavirus outbreaks have been identified in horsehoe bats. Dr. Low de Vries

Why it’s important to study coronaviruses in African bats

Understanding the many factors that may play a role in spillover of pathogens from bats to humans requires systematic surveillance of bat populations.
Three species of immature mosquito: the common house mosquito, and the malaria vectors An. arabiensis and An. funestus. Supplied

How higher temperatures and pollution are affecting mosquitoes

Researchers are only beginning to understand the impact of pollution and increased temperatures on the biology of mosquitoes.
People and animals live side by side – and can have pathogens in common. Nichola Hill

Influenza’s wild origins in the animals around us

No one then knew a virus caused the 1918 flu pandemic, much less that animals can be a reservoir for human illnesses. Now virus ecology research and surveillance are key for public health efforts.

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