Volume 29, Issue 8, December 2022

Although true vaccine diplomacy in the form of sharing vaccine development technologies and scientific cooperation with low- and middle-income countries has not been a dominant theme in the COVID-19 pandemic, this aspect is now taking off and generating some exciting new possibilities.

COVID-19 is with us indefinitely and air travel is a necessity. Needed research has lagged due to pandemic disruption but must not stall due to COVID indifference. A US government report proposes that national aviation authorities, not health agencies, take the lead. Research priorities and study designs are proposed.

We have previously documented that the unsanitary conditions in the Syrian refugee settlements and pollution in Lebanon were suitable for the proliferation of infectious diseases. Here, we discuss how cholera is spreading rapidly across Lebanon, where a Syrian man from an informal settlement is thought to be the index case.

Given the potential spread of monkeypox (MPX) during the FIFA world cup 2022 in Qatar, appropriate precautions should be taken for early containment. Ring vaccination is an appropriate measure in this regard due to its ability not only to break the MPX transmission chain but also to prevent its progression.

International travel has resumed while the risk of SARS-CoV-2 persists, leading to consideration of medications that can treat or prevent Covid-19 when travellers become ill abroad. Nirmatrelvir-ritonavir, molnupiravir and tixagevimab-cilgavimab are available under Emergency Use Authorization or conditional approval. We discuss the potential application of these medications to protect travellers.

Estimating serial interval (SI) and incubation period (IP) is necessary to interpret transmission trends and optimize contact tracing and isolation measures. We conducted a systematic review to synthesize the evidence for serial interval and incubation period of the monkeypox virus and further estimated the SI and IP of each clade.

Monkeypox, a fast-spreading viral zoonosis outside of Africa in May 2022, has put scientists on alert. We estimated the reproduction number to be 1.39 (95% CrI: 1.37, 1.42) by aggregating all cases in 70 countries as of 22 July 2022.

We report an off-season surge of influenza A infections among children in Qatar coinciding with the relaxation of COVID-19 related social restrictions and the normalization of international travel. The unusual surge may be related to population waning immunity after a prolonged reduced influenza A activity in Qatar.

Estimating the effective reproduction number of Omicron subvariants is crucial for evaluating the effectiveness of control measures, and adjusting control measures promptly. We conducted a systematic review to synthesize the evidence from estimates of the reproduction numbers for Omicron subvariants, and estimated their effective reproduction number.

We analysed the effectiveness of various non-pharmaceutical interventions in containing the 2022 Omicron outbreak in China. The results show that the Rapid Antigen Test contributed to containing the outbreak, reducing the reproduction number by 0.788 (95% CI:−0.306, 1.880) in studied cities.

We identified and compared patients diagnosed with Plasmodium falciparum malaria at a large hospital in London, UK, prior to the COVID-19 pandemic vs following relaxation of COVID-19-associated restrictions. We found that parasitaemias, rates of hyperparasitaemia and severe malaria were significantly higher in the period post-relaxation of COVID-19 restrictions.